Talks & Presentations
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Coauthor but not presenter.
2021:

UPCOMING ☞
TBD [Contributed]
March Meeting 2021 of the American Physical Society, Nashville, Tennessee, March 15–19, 2021.
2020:

UPCOMING ☞
See coauthored talks below [Contributed]
73^{rd} Annual Meeting of the American Physical Society's Division of Fluid Dynamics, Chicago, Illinois virtual (due to COVID19), November 22–24, 2020.

Multiphysics problems at low Reynolds number: From deformable channels to spinning droplets [Invited] [PDF(13.3 MB)] [Video]
Frontiers in Mechanical Engineering and Sciences: A MultiUniversity Webinar Series, virtual, September 11, 2020.

Soft Hydraulics: Mathematical Modeling of Flows in Deformable Conduits [Invited Plenary] [Video]
Twelfth Conference of the EuroAmerican Consortium for Promoting the Application of Mathematics in Technical and Natural Sciences, Albena, Bulgaria virtually online (due to COVID19), June 26, 2020.

Mathematical modeling of viscous flows in deformable conduits [Invited] [cancelled due to COVID19]
Special Session on Recent Advances in Modeling, Computational Methods, and Simulations of Physical/Biological Systems, 2019 Spring Central Sectional Meeting of the American Mathematical Society, West Lafayette, Indiana, April 5, 2020.

Soft hydraulics: Theory of flow in deformable microchannels [Contributed] [cancelled due to COVID19] [Presentation]
Focus Session on Microflows Meet Soft Matter II: Deformation (see here for I: Crystals, Colloids, & Particles), March Meeting 2020 of the American Physical Society, Denver, Colorado, March 2, 2020.

Soft hydraulics: The theory of microscale fluidinduced deformation [Invited]
MechSE Fluid Mechanics Seminar, Department of Mechanical Science and Engineering, University of Illinois at UrbanaChampaign, Urbana, Illinois, February 21, 2020.

Soft hydraulics: Hydrodynamic resistances beyond Hagen–Poiseuille [Invited]
Research Workshop of the Israel Science Foundation on MicroSwimmers and SoftRobotics, Technion, Haifa, Israel, February 4, 2020.
2019:

See coauthored talks below [Contributed]
72^{nd} Annual Meeting of the American Physical Society's Division of Fluid Dynamics, Seattle, Washington, November 24–26, 2019.

Stokes flows in deformable conduits: Hydrodynamic resistance beyond Poiseuille [Contributed] [PDF]
Poster Session, Stokes^{200}: A celebration of the remarkable scientific achievements of Sir George Gabriel Stokes two hundred years after his birth, Pembroke College, Cambridge, United Kingdom, September 16, 2019.

Fundamental aspects of continuum modeling of granular diffusion and dispersion in tumbler flows [Invited] [PDF]
Blending & Segregation Forum, Center for Particulate Products and Processes (CP3), Purdue University, West Lafayette, Indiana, August 7, 2019.

1D model of unsteady microchannel fluid—structure interactions: a viscous, rectilinear Starling resistor? [Contributed]
Poster Session, Mathematical Fluids, Materials and Biology: A conference in honor of the 60th Birthday of Michael J. Shelley, University of Michigan, Ann Arbor, Michigan, June 14, 2019.

Microscale Fluid–Structure Interactions: Towards a Predictive Theory [Contributed]
Harrington Symposium: Physics of Microfluidics, Austin, Texas, June 10, 2019.

Complex Dynamics of Unsteady Microchannel Fluid–Structure Interactions: 1D Model [Invited]
Minisymposium on Applied Mathematical Techniques for Fluid Flow Across Scales, 2019 SIAM Conference on Applications of Dynamical Systems, Snowbird, Utah, May 19, 2019.

Flows in deformable conduits: Towards a theory of the response of soft microdevices [Invited] [PDF]
Flow Assurance Conference, Purdue Process Safety & Assurance Center (P2SAC) 2019 Spring Conferences, West Lafayette, Indiana, May 9, 2019.

Reducedorder modeling of unsteady microscale fluid–structure interactions [Invited]
Seminar in Applied Mathematics, Department of Mathematics & Statistics, Texas Tech University, Lubbock, Texas, May 1, 2019.

From microchannels to blood vessels: A mathematical modeling perspective on flow in soft conduits [Invited]
Colloquium, Department of Mathematics & Statistics, Texas Tech University, Lubbock, Texas, April 30, 2019.

Perturbative Theory of FlowDriven Deformation of Small Pores [Invited]
Minisymposium on Fracture Formation Coupled with Fluid Flow and Wave Propagation in the Porous Media, 2019 SIAM Conference on Mathematical & Computational Issues in the Geosciences, Houston, Texas, March 13, 2019.

Longrange interactions of kinks [Contributed] [PDF]
Ivan C. Christov, Robert J. Decker, A. Demirkaya, Vakhid A. Gani, P. G. Kevrekidis and R. V. Radomskiy
Poster Session, Dynamics Days 2019, Evanston, Illinois, January 4, 2019.
2018:

A 1D model for unsteady fluid–structure interactions in a softwalled microchannel [Contributed] [PDF]
71^{th} Annual Meeting of the American Physical Society's Division of Fluid Dynamics, Atlanta, Georgia, November 18, 2018.

From microchannels to blood vessels: A mathematical modeling perspective on flow in soft conduits [Invited]
Applied Math / Applied Math Lab Seminar, Courant Institute of Mathematical Sciences, Department of Mathematics, New York University, New York, New York, October 19, 2018.

From microchannels to blood vessels: A mathematical modeling perspective on flow in soft conduits [Invited]
Colloquium, Department of Mathematics, University of Nebraska–Lincoln, Lincoln, Nebraska, August 31, 2018.

Reducedorder modeling of unsteady microscale fluid–structure interactions [Invited]
Continuum Mechanics Seminar, Department of Mathematics, University of Nebraska–Lincoln, Lincoln, Nebraska, August 30, 2018.

Microscale fluid–structure interactions: Theory and simulation of static response [Invited]
Microfluidics Seminar, National Institute of Standards and Technology (NIST), Gaithersburg, Maryland, May 8, 2018.

Cutting and Shuffling with Diffusion: Cutoffs in Interval Exchange Maps [Contributed] [PDF]
Mengying Wang and Ivan C. Christov
Poster Session, Dynamics Days 2018, Denver, Colorado, January 4, 2018.
2017:

Low Reynolds Number FluidStructure Interactions: Modeling the Response of Soft Microfluidic Devices [Invited] [PDF]
Minisymposium on Analysis, Control and Inverse Theory of Flows, Material Structures, Acoustics, and Their Interactions, 2017 SIAM Conference on Analysis of Partial Differential Equations, Baltimore, Maryland, December 9, 2017.

Static response of deformable microchannels [Contributed] [PDF]
70^{th} Annual Meeting of the American Physical Society's Division of Fluid Dynamics, Denver, Colorado, November 20, 2017.

Transport Phenomena in Flows of Granular Materials [Invited]
Center for Particulate Products and Processes Seminar, Purdue University, West Lafayette, Indiana, November 3, 2017.

Multiplescale asymptotics of plane waves in media with variable phase speed [Invited]
Seminar, Department of Physics, Clark Atlanta University, Atlanta, Georgia, October 12, 2017.

Mathematical and Computational Modeling of Microfluidic Fluid−Structure Interactions [Invited]
Seminar, Savannah State University, Savannah, Georgia, October 9, 2017.

Traveling Waves in Fluids: Kink Solutions and Bifurcations with Respect to the Wave Speed [Invited]
Minisymposium "Nonlinear wave dynamics of generalized continua" (in memory of E. Aero and G. Maugin), XLV International Summer SchoolConference "Advanced Problems in Mechanics", Saint Petersburg, Russian Federation, June 24, 2017.

Traveling Waves in Fluids: Bifurcations with Respect to the Wave Speed [Invited]
Minisymposium on Exotic Bifurcations in Fluid and Granular Dynamics, 2017 SIAM Conference on Applications of Dynamical Systems, Snowbird, Utah, May 21, 2017.

Topics in low Re flow: From microfluidic fluid–structure interactions to multiphase flow in hydraulic fractures [Invited]
Special Seminar, Department of Mechanical & Industrial Engineering, New Jersey Institute of Technology, Newark, New Jersey, April 20, 2017.

Modeling Flow Rate–Pressure Drop Relations of Soft MicroFluidic Devices [Invited] [PDF]
Minisymposium on Smallscale flows with industrial applications: Modeling and simulations, 2017 SIAM Conference on Computational Science and Engineering, Atlanta, Georgia, February 27, 2017.
2016:

Topics in low Re flow: From microfluidic fluid–structure interactions to proppant transport in hydraulic fractures [Invited]
Computational & Applied Mathematics Lunch Seminar, Department of Mathematics, Purdue University, West Lafayette, Indiana, December 2, 2016.

Mathematical analysis of electromigration dispersion fronts [Contributed] [PDF]
69^{th} Annual Meeting of the American Physical Society's Division of Fluid Dynamics, Portland, Oregon, November 22, 2016.

Selfsimilar regimes of gravitydriven spreading of viscous liquids in model heterogeneous porous media [Invited]
Special Session on Aspects of PDE Arising from Modeling of the Flows in Porous Media, 2016 Fall Western Sectional Meeting of the American Mathematical Society, Denver, Colorado, October 8, 2016.

On PDEs with Hamiltonian structure: From kinks in higherorder field theory to peakompactons [Invited] [PDF]
MiniSymposium on "Mathematics of Nonlinear Phenomena," VI International Conference "Frontiers of Nonlinear Physics," Nizhny Novgorod, Russian Federation, July 17, 2016.

Flow regimes for fluid injection into a confined porous medium
[Invited]
Special Session on New Developments in Porous Media, The 11^{th} AIMS Conference on Dynamical Systems, Differential Equations and Applications, Orlando, Florida, July 4, 2016.
☞ Presented in lieu of Zhong Zheng.

Selfsimilar viscous gravity currents in heterogeneous porous media: Secondkind solutions [Invited]
Special Session on New Developments in Porous Media, The 11^{th} AIMS Conference on Dynamical Systems, Differential Equations and Applications, Orlando, Florida, July 4, 2016.

Selfsimilar viscous gravity currents in heterogeneous porous media: Secondkind solutions [Contributed]
Zhong Zheng, Ivan Christov and Howard Stone
8^{th} International Conference on Porous Media & Annual Meeting, Cincinnati, Ohio, May 12, 2016.

On PDEs with Hamiltonian structure: From kinks in higherorder field theory to peakompactons [Invited] [PDF]
Workshop on Nonlinear Dynamics of Many Body Systems, Buffalo, New York, April 3, 2016.

Multiplescale asymptotics of plane waves in media with variable phase speed [Invited] [PDF]
Applied Mathematics Colloquium, Department of Mathematical Sciences, New Jersey Institute of Technology, Newark, New Jersey, March 11, 2016.
2015:

A Parametric Study of Mixing in a Granular Flow a BiAxial Spherical Tumbler [Contributed]
13^{th} International Conference on Dynamical Systems: Theory and Applications, Łódź, Poland, December 7, 2015.

On a difficulty in eigenfunction expansion solutions for the startup of fluid flow [Contributed] [PDF]
68^{th} Annual Meeting of the American Physical Society's Division of Fluid Dynamics, Boston, Massachusetts, November 23, 2015.

On a hierarchy of nonlinearly dispersive generalized KdV equations [Invited] [PDF]
Conference on Emergent Paradigms in Nonlinear Complexity: From PT Symmetry to Nonlinear Dirac Systems, From Polaritons to Skyrmions, Santa Fe, New Mexico, June 9, 2015.

Collective Coordinates as Model Reduction for Nonlinear Wave Interactions [Invited] [PDF]
Minisymposium on Reduced Dynamical Models and Their Applications, 2015 SIAM Conference on Applications of Dynamical Systems, Snowbird, Utah, May 18, 2015.

On a hierarchy of nonlinearly dispersive generalized KdV equations [Invited] [PDF]
Conference on Recent Developments in Continuum Mechanics and Partial Differential Equations, University of Nebraska–Lincoln, Lincoln, Nebraska, April 19, 2015.

Kinks and their statistical mechanics in higherorder scalar field theories [Invited]
Special Session on Mathematical Modeling and Physical Dynamics of Solitary Waves: From Continuum Mechanics to Field Theory, 9^{th} IMACS International Conference on Nonlinear Evolution Equations and Wave Phenomena: Computation and Theory, Athens, Georgia, April 1, 2015.

Low Reynolds number flows through shaped and deformable conduits [Invited]
MAE Colloquium, Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, New York, April 7, 2015.

Low Reynolds number flows through shaped and deformable conduits [Invited]
Colloquium, Department of Mathematics & Statistics, Texas Tech University, Lubbock, Texas, March 5, 2015.

Transport phenomena in energy applications: The interaction between flow and shape at small scales [Invited]
ERE Spring Seminar, Department of Energy Resources Engineering, Stanford University, Stanford, California, February 23, 2015.

Low Reynolds number flows through shaped and deformable conduits [Invited]
Faculty Candidate Seminar, School of Mechanical Engineering, Purdue University, West Lafayette, Indiana, February 17, 2015.

Transport phenomena in energy applications: Fluidstructure interactions and beyond [Invited]
Colloquium, Department of Mathematics & Statistics, The Univeristy of New Mexico, Albuquerque, New Mexico, February 12, 2015.

Low Reynolds number flows through shaped and deformable conduits [Invited]
Seminar, Department of Mechanical Engineering, Iowa State University, Ames, Iowa, February 10, 2015.

Low Reynolds number flows through shaped and deformable conduits [Invited]
Colloquium, Department of Mathematics, University of British Columbia, Vancouver, Canada, February 5, 2015.

Transport Phenomena in Energy Applications: Fluid–structure Interactions and Beyond [Invited]
AMS Lecture, Applied Mathematics & Statistics, Colorado School of Mines, Golden, Colorado, February 2, 2015.

Low Reynolds number flows through shaped and deformable conduits [Invited]
MechSE Seminar, Department of Mechanical Science and Engineering, University of Illinois at UrbanaChampaign, Urbana, Illinois, January 29, 2015.

Low Reynolds number flows through shaped and deformable conduits [Invited]
Colloquium, Department of Mathematics, Temple University, Philadelphia, Pennsylvania, January 22, 2015.

Low Reynolds number flows through shaped and deformable conduits [Invited]
Special Colloquium, Department of Mathematics, UC Riverside, Riverside, California, January 15, 2015.
2014:

Continuum modeling of diffusion and dispersion in dense granular flows [Contributed] [PDF]
67^{th} Annual Meeting of the American Physical Society's Division of Fluid Dynamics, San Francisco, California, November 24, 2014.

Low Reynolds number flows through shaped and deformable conduits [Invited]
AMS Colloquium, Applied Mathematics & Statistics, Colorado School of Mines, Golden, Colorado, November 21, 2014.

Low Reynolds number flows through shaped and deformable conduits [Invited]
Applied Math Seminar, Department of Mathematics & Statistics, The University of New Mexico, Albuquerque, New Mexico, October 13, 2014.

Low Reynolds number flows through shaped and deformable conduits [Invited]
ME Seminar, Department of Mechanical Engineering, The University of New Mexico, Albuquerque, New Mexico, September 26, 2014.

Kinks and their statistical mechanics in higherorder scalar field theories [Invited]
IUTAM Symposium on Complexity of Nonlinear Waves, Tallinn, Estonia, September 12, 2014.

On Eigenfunction Expansion Solutions for the StartUp of Fluid Flow [Contributed] [PDF]
2014 SIAM Annual Meeting, Chicago, Illinois, July 7, 2014.

On eigenfunction expansion solutions for the startup of fluid flow [Contributed] [PDF]
2014 Western Spring Sectional Meeting of the American Mathematical Society, Albuquerque, New Mexico, April 5, 2014.

Continuum modeling of diffusion and dispersion in dense granular flows [Contributed] [PDF]
Focus Session: Continuum Description of Discrete Materials, March Meeting 2014 of the American Physical Society, Denver, Colorado, March 3, 2014.

Secondkind Selfsimilarities for Gravity Currents in Heterogeneous Porous Media [Invited]
The Fourth Collaborative Workshop Initiative, Oxford, United Kingdom, January 7, 2014.
☞ Presented in lieu of Zhong Zheng.
2013:

Chaotic mixing of granular materials [Invited]
Applied and Computational Mathematics Seminar, Department of Mathematics, University of Wisconsin–Madison, Madison, Wisconsin, December 11, 2013.

Flow rate–pressure drop relation for deformable shallow microfluidic channels [Contributed] [PDF]
66^{th} Annual Meeting of the American Physical Society's Division of Fluid Dynamics, Pittsburgh, Pennsylvania, November 26, 2013.

Transport phenomena in flows of granular materials [Invited]
Mathematical Sciences Colloquium, Department of Mathematical Sciences, Rensselaer Polytechnic Institute, Troy, New York, November 19, 2013.

Transport phenomena in flows of granular materials [Invited]
Applied Math Lab Seminar, Courant Institute of Mathematical Sciences, Department of Mathematics, New York University, New York, New York, November 7, 2013.

Transport phenomena in flows of granular materials [Invited]
Colloquium, Department of Mathematics, University of Nebraska–Lincoln, Lincoln, Nebraska, October 18, 2013.

Two case studies in nonlinear Fourier analysis: Ocean internal solitary waves and the Zabusky–Kruskal solitons [Invited]
Continuum Mechanics Seminar, Department of Mathematics, University of Nebraska–Lincoln, Lincoln, Nebraska, October 17, 2013.

Influence of Heterogeneity on Secondkind Selfsimilar Solutions for Gravity Currents [Invited]
Minisymposium on Advances in Modeling and Computation of Thin Liquid Films in Materials Science, 2013 SIAM Conference on Mathematical Aspects of Materials Science, Philadelphia, Pennsylvania, June 11, 2013.
☞ Presented in lieu of Zhong Zheng.

Anomalous diffusion in granular flow: fractional kinetics or intermediate asymptotics? [Invited] [PDF]
Minisymposium on Granular Flows from a Dynamical Systems Perspective, 2013 SIAM Conference on Applications of Dynamical Systems, Snowbird, Utah, May 20, 2013.

Diffusion in flows of granular materials [Invited]
Fluid Mechanics Seminar, Department of Mathematical Sciences, New Jersey Institute of Technology, Newark, New Jersey, April 15, 2013.

Variational approximation of repelling and attracting solitons in coupled nonlinear Schrödinger equations [Invited]
Special Session on Modeling and Wave Phenomena in Nonlinear Continuum Mechanics, 8^{th} IMACS International Conference on Nonlinear Evolution Equations and Wave Phenomena: Computation and Theory, Athens, Georgia, March 27, 2013.

Diffusion in flows of granular materials [Invited]
Ergodic Theory & Statistical Mechanics Seminar, Department of Mathematics, Princeton University, Princeton, New Jersey, March 7, 2013.

Transport phenomena in flows of granular materials [Invited]
Faculty Candidate Seminar, George W. Woodruff School of Mechanical Engineering, Georgia Tech, Atlanta, Georgia, March 4, 2013.

Transport phenomena in flows of granular materials [Invited]
Fluid Mechanics, Combustion and Engineering Physics Seminar, Department of Mechanical and Aerospace Engineering, UC San Diego, San Diego, California, March 1, 2013.

Transport phenomena in flows of granular materials [Invited]
Special Applied Mathematics Colloquium, Department of Applied Physics and Applied Mathematics, Columbia University, New York, New York, February 22, 2013.

Transport phenomena in flows of granular materials [Invited]
Seminar, Center for Nonlinear Studies, Los Alamos National Laboratory, Los Alamos, New Mexico, February 12, 2013.

Transport phenomena in flows of granular materials [Invited]
Numerical Analysis Seminar, Department of Mathematics, Texas A&M University, College Station, Texas, February 6, 2013.

Transport Phenomena in Flows of Granular Materials [Invited]
Special Mathematics Colloquium, Florida State University, Tallahassee, Florida, January 23, 2013.

Transport phenomena in flows of granular materials [Invited]
Special Seminar, North Carolina State University, Raleigh, North Carolina, January 15, 2013.
2012:

Transport phenomena in flows of granular materials [Invited]
Analysis, Dynamics, and Applications Seminar, The University of Arizona, Tucson, Arizona, December 11, 2012.

Resolving a paradox of anomalous scalings in the diffusion of granular materials [Contributed] [PDF]
65^{th} Annual Meeting of the American Physical Society's Division of Fluid Dynamics, San Diego, California, November 19, 2012.

Pseudolocalized threedimensional solitary waves as quasiparticles, the legacy of Prof. C.I. Christov [Invited] [PDF]
2012 Lloyd Roeling UL Lafayette Mathematics Conference, Lafayette, Louisiana, November 2, 2012.

Intermediate Asymptotics of Axial Diffusion of Tumbled Granular Materials [Contributed] [PDF]
Session: Particulate and Multiphase Flows II, 2012 AIChE Annual Meeting, Pittsburgh, Pennsylvania, October 30, 2012.

Transport phenomena in flows of granular materials [Invited]
Mechanical Engineering Thursday Seminar, The Johns Hopkins University, Baltimore, Maryland, October 18, 2012.

Two case studies in nonlinear Fourier analysis: Ocean internal solitary waves and the Zabusky—Kruskal solitons [Invited] [PDF]
Solitons, Coherence and Geometry Seminar, Institute of Nuclear Research and Nuclear Energy at the Bulgarian Academy of Sciences, Sofia, Bulgaria, October 3, 2012.

Transport phenomena in flows of granular materials [Invited]
Parallel Algorithms and Scientific Computations Seminar, Institute of Information and Communication Technologies at the Bulgarian Academy of Sciences, Sofia, Bulgaria, October 2, 2012.

Diffusion and Dispersion in Flows of Granular Materials [Invited] [PDF]
Oxford Collaborative Development Workshop, Oxford Centre for Collaborative Applied Mathematics, University of Oxford, United Kingdom, September 12, 2012.

Dissipative acoustic solitons [Invited] [PDF]
Special Session on Nonlinear PDEs and Control Theory with Applications, 9^{th} AIMS International Conference on Dynamical Systems, Differential Equations and Applications, Orlando, Florida, July 4, 2012.

Pattern formation and destruction in chaotic granular flows: Strange eigenmodes at finite Péclet number [Contributed] [PDF]
Poster Session, Workshop on Active Jammed Systems, New York City, New York, May 26, 2012.

Chaotic dynamics in granular flows from the Eulerian and Lagrangian perspectives [Invited]
Mechanical and Industrial Engineering Colloquium, New Jersey Institute of Technology, Newark, New Jersey, April 18, 2012.

Chaotic dynamics in granular flows from the Eulerian and Lagrangian perspectives [Invited]
MIME Seminar Series, Oregon State University, Corvallis, Oregon, March 12, 2012.

From streamline jumping to strange eigenmodes: Learning from simple continuum models of granular mixing [Contributed]
March Meeting 2012 of the American Physical Society, Boston, Massachusetts, February 28, 2012.
☞ Highlighted in the meeting image gallery.

Pattern formation and destruction in chaotic granular flows: Strange eigenmodes at finite Péclet number [Contributed] [PDF]
Poster Session, Dynamics Days 2012, Baltimore, Maryland, January 4, 2012.
2011:

Strange eigenmodes of chaotic granular flow in a tumbler [Contributed]
64^{th} Annual Meeting of the American Physical Society's Division of Fluid Dynamics, Baltimore, Maryland, November 20, 2011.

Dynamics of Polarization in Soliton Collisions in Coupled Nonlinear Schrodinger Equations [Invited] [PDF]
Minisymposium on Solitons and Nonlinear Integrable Systems, 7^{th} International Congress on Industrial and Applied Mathematics (ICIAM 2011), Vancouver, British Columbia, July 20, 2011.

3D Aspects of Mixing and Transport in Tumbled Granular Flow [Invited]
Minisymposium on Different Faces of Mixing, 2011 SIAM Conference on Applications of Dynamical Systems, Snowbird, Utah, May 22, 2011.

Interactions of dissipative solitons in a weaklynonlinear acoustic Eulerα model [Invited] [PDF]
Special Session on Recent trends in nonlinear wave phenomena—Achievements and challenges: A symposium dedicated to Prof. Christo I. Christov on the occasion of his 60^{th} birthday, 7^{th} IMACS International Conference on Nonlinear Evolution Equations and Wave Phenomena: Computation and Theory, Athens, Georgia, April 5, 2011.

Structure of 3D chaotic transport in a tumbled granular flow in a sphere [Contributed] [PDF]
International Workshop on Physics of Mixing, Lorentz Center, Leiden, The Netherlands, January 25, 2011.
2010:

3D aspects of mixing and transport in tumbled granular flow [Contributed]
63^{rd} Annual Meeting of the American Physical Society's Division of Fluid Dynamics, Long Beach, California, November 23, 2010.

Mixing by cutting and shuffling in quasi2D granular flows [Contributed]
2^{nd} Annual Meeting of the Prairie Section of the American Physical Society, Chicago, Illinois, November 19, 2009.

Mixing Things Up with Dynamical Systems [Invited]
Department of Mathematics and Department of Physics Seminar Series, Elmhurst College, Illinois, October, 6, 2010.

Two case studies in nonlinear Fourier analysis: Ocean internal solitary waves and the Zabusky–Kruskal solitons [Invited] [PDF]
Department of Chemical and Biological Engineering Seminar, The University of Sheffield, United Kingdom, September 10, 2010.

3D aspects of mixing and transport in tumbled granular flow [Contributed]
Dynamics Days Europe 2010, Bristol, United Kingdom, September 9, 2010.

Mixing by cutting and shuffling in tumbled granular flows [Invited]
Fluids and MHD Seminar, Department of Applied Mathematics, University of Leeds, United Kingdom, May 6, 2010.

Chaotic granular mixing in quasitwodimensional tumblers: streamline jumping, piecewise isometries and strange eigenmodes [Contributed] [PDF]
Poster Session, IMA Workshop on Transport and Mixing in Complex and Turbulent Flows, Minneapolis, Minnesota, April 12, 2010.

Chaotic granular mixing in quasitwodimensional tumblers: streamline jumping and piecewise isometries [Contributed] [PDF]
Poster Session, Dynamics Days 2010: International Conference on Chaos and Nonlinear Dynamics, Evanston, Illinois, January 5, 2010.
2009:

Granular mixing in quasitwodimensional tumblers with a vanishing flowing layer [Contributed] [PDF]
62^{nd} Annual Meeting of the American Physical Society's Division of Fluid Dynamics, Minneapolis, Minnesota, November 22, 2009.

Thermal shock waves under a Maxwell–Cattaneo model with temperaturedependent conductivity [Invited] [PDF]
Symposium on SecondSound and Thermal Shock Phenomena, 8^{th} International Congress on Thermal Stresses, UrbanaChampaign, Illinois, June 3, 2009.

Hidden solitons in the Zabusky–Kruskal experiment: Analysis using the periodic, inverse scattering transform [Invited] [PDF]
Special Session on Nonlinear Wave Phenomena in Discrete and Continuous Models, 6^{th} IMACS International Conference on Nonlinear Evolution Equations and Wave Phenomena: Computation and Theory, Athens, Georgia, March 25, 2009.
2008:
2007:

Internal solitary waves in the ocean: Analysis using the periodic, inverse scattering transform [Invited] [PDF]
Special Session on Nonlinear Wave Phenomena in the Physical Sciences: Some Recent Studies, 5^{th} IMACS International Conference on Nonlinear Evolution Equations and Wave Phenomena: Computation and Theory, Athens, Georgia, April 16, 2007.

A Short Introduction to the Theory and Numerics of FirstOrder Hyperbolic PDEs [Invited]
Graduate Student Seminar of the Department of Mathematics, Texas A&M University, College Station, Texas, March 1, 2007.

Dynamics of QuasiParticles in Nonlinear Wave Equations [Contributed] [PDF]
Poster Session, Dynamics Days 2007: an International Conference on Chaos and Nonlinear Dynamics, Boston, Massachusetts, January 4, 2007.
2006:

Nonoscillatory Central Schemes on Unstructured Triangulations for Hyperbolic Systems of Conservation Laws [Contributed] [PDF]
Minisymposium on Numerical Methods for FirstOrder PDEs, 8^{th} IMACS International Symposium on Iterative Methods in Scientific Computation, College Station, Texas, November 16, 2006.

Nonoscillatory Central Schemes on Unstructured Triangulations for Hyperbolic Systems of Conservation Laws [Invited] [PDF]
Department of Mathematics Colloquium, University of Louisiana at Lafayette, November 2, 2006.

On the Application of Godunovtype Schemes to Conservation Laws Arising from the Equations of Nonlinear Acoustics [Contributed] [PDF]
Special Session on Numerical Methods for Hyperbolic Problems, 6^{th} International Conference on Numerical Methods and Applications, Borovets, Bulgaria, August 20, 2006.

Nonoscillatory Central Schemes on Unstructured Triangular Grids for Hyperbolic Systems of Conservation Laws [Contributed] [PDF]
2006 SIAM Conference on Analysis of Partial Differential Equations, Boston, MA, July 12, 2006.
2005:

Solitary Internal Waves in the Ocean: The Scattering Transform Perspective [Invited] [PDF]
Acoustic Simulation, Measurements and Tactics Branch (Code 7180), Naval Research Laboratory, Stennis Space Center, Mississippi, August 17, 2005.

Nonlinear Fourier Analysis: The Direct & Inverse Scattering Transforms for the Korteweg–de Vries Equation [Invited] [PDF]
Acoustics Division (Code 7100), Naval Research Laboratory, Stennis Space Center, MS and Washington, DC, August 5, 2005.

On the WaveletGalerkin Solution to the KdV Equation [Contributed] [PDF]
MAA Undergraduate Poster Session, Joint Mathematics Meetings, Atlanta, Georgia, January 5, 2005.
2004:

On the WaveletGalerkin Solution to the KdV Equation [Contributed] [PDF]
Texas A&M University REU/VIGRE Student MiniConference, July 20, 2004.

A Wavelet Method for Image AntiAliasing [Contributed] [PDF]
Research by Undergraduates in Mathematics Boston University Symposium (RUMBUS), April 24, 2004.
2003:

"WaveletGalerkin Methods for Differential Equations [Contributed] [PDF]
Texas A&M University REU/VIGRE Student MiniConference, July 22, 2003.
Coauthor but not presenter:

Heat and Mass Transfer in Oscillatory Squeeze Flow of a Maxwell Fluid [Contributed]
Rui Yang, Ivan Christov, Ian Griffiths, and Guy Ramon
73^{rd} Annual Meeting of the American Physical Society's Division of Fluid Dynamics, Virtual, CT (Chicago time), November 24, 2020.

Transient microscale compressible flow in a viscoelastic tube [Contributed]
Vishal Anand and Ivan Christov
73^{rd} Annual Meeting of the American Physical Society's Division of Fluid Dynamics, Virtual, CT (Chicago time), November 24, 2020.

Two fluid modeling of heat transfer in dense suspension flows in Couette cells [Contributed]
Pranay P. Nagrani, Federico Municchi, Ivan C. Christov, and Amy M. Marconnet
73^{rd} Annual Meeting of the American Physical Society's Division of Fluid Dynamics, Virtual, CT (Chicago time), November 22, 2020.

Nonlinear Einstein Paradigm Of Brownian Motion And NonDivergence Parabolic Equations [Invited]
R. Islam, I. Christov, A. Ibraguimov, and I. Garli Hevage
Minisymposium on "Theoretical and computational studies of PDEs driven by random processes," 3^{rd} Annual Meeting of the SIAM TexasLouisiana Section, Virtual Zoom Meeting (due to COVID19), October 16–18, 2020.

The hydraulic conductivity of shaped fractures with permeable walls [Contributed]
Daihui Li, Federico Municchi, and Ivan C. Christov
InterPore 2020, 12^{th} Annual Meeting, online (due to COVID19), August 31–September 4, 2020.

ImageBased Modeling of Arteriovenous MalformationRelated Aneurysms [Contributed]
Kimberly Stevens Boster, Aaron CohenGadol, Ivan C. Christov, and Vitaliy L. Rayz
Summer Biomechanics, Bioengineering, & Biotransport Conference (SB^{3}C) Virtual Conference, June 18, 2020.

PatientSpecific Reduced Order Models of Cerebrovascular Flow based on 4D Flow MRI [Contributed]
Kimberly A. Stevens, Maria Aristova, Susanne Schnell, Ivan C. Christov, and Vitaliy L. Rayz
The 9^{th} International BioFluid Mechanics and Vascular MechanoBiology Symposium, Tucson, Arizona, February 13, 2020.

Hydrostatic and hydrodynamic bulge testing of prestressed thick elastic plates for microfluidic applications [Contributed]
Vishal Anand and Ivan C. Christov
72^{nd} Annual Meeting of the American Physical Society's Division of Fluid Dynamics, Seattle, Washington, November 26, 2019.

Theory of the bulging effect of soft microchannels with thick walls [Contributed]
Xiaojia Wang and Ivan C. Christov
72^{nd} Annual Meeting of the American Physical Society's Division of Fluid Dynamics, Seattle, Washington, November 26, 2019.

PatientSpecific Computational Modeling of Cerebrovascular AVMrelated Aneurysms [Contributed]
Kimberly A. Stevens, Aaron A. CohenGadol, Ivan C. Christov, and Vitaliy L. Rayz
72^{nd} Annual Meeting of the American Physical Society's Division of Fluid Dynamics, Seattle, Washington, November 25, 2019.

The hydraulic conductivity of shaped fractures with permeable walls [Contributed]
Daihui Lu and Ivan C. Christov
72^{nd} Annual Meeting of the American Physical Society's Division of Fluid Dynamics, Seattle, Washington, November 25, 2019.

PatientSpecific Computational Modeling of Cerebrovascular Hemodynamics [Contributed]
Kimberly A. Stevens, Ivan C. Christov and Vitaliy L. Rayz
Poster Session, Cardiovascular Engineering, 2019 BMES Annual Meeting, Philadelphia, Pennsylvania, October 17, 2019.

Towards a theory of fluidstructure interaction due to internal flow in deformable microchannels [Contributed]
Xiaojia Wang and Ivan C. Christov
Poster Session, Mathematical Fluids, Materials and Biology: A conference in honor of the 60th Birthday of Michael J. Shelley, University of Michigan, Ann Arbor, Michigan, June 14, 2019.

PatientSpecific Computational Modeling of
Cerebrovascular Hemodynamics [Contributed]
Kimberly A. Stevens, Tanmay C. Shidhore, Ivan C. Christov and Vitaliy L. Rayz
Poster Session, Advancing Health: An Engineering–Medicine Partnership, Indianapolis, Indiana, May 3, 2019.

Thermodynamics of Coherent Structures near Phase Transitions [Contributed] [PDF]
Julia M. Meyer and Ivan Christov
Poster Session, 2019 Purdue Undergraduate Research Conference, Purdue University, West Lafayette, Indiana, April 9, 2019.

The Effect of Diffusion on Mixing by Cutting and Shuffling [Contributed] [PDF]
Mengying Wang and Ivan C. Christov
Poster Session, Dynamics Days 2019, Evanston, Illinois, January 5, 2019.

A twofluids model for numerical simulation of shear dominated suspension flows [Contributed]
Federico Municchi, Pranay P. Nagrani and Ivan C. Christov
71^{th} Annual Meeting of the American Physical Society's Division of Fluid Dynamics, Atlanta, Georgia, November 19, 2018.

Computational analysis of interfacial instabilities in HeleShaw cells with small gap gradient [Contributed]
Daihui Lu, Federico Municchi and Ivan C. Christov
71^{th} Annual Meeting of the American Physical Society's Division of Fluid Dynamics, Atlanta, Georgia, November 19, 2018.

Static response of a soft microtube due to low Reynolds number nonNewtonian flow [Contributed]
Vishal Anand and Ivan C. Christov
71^{th} Annual Meeting of the American Physical Society's Division of Fluid Dynamics, Atlanta, Georgia, November 18, 2018.

Transport and mixing of miscible fluids inside a capillary tube [Contributed]
Ziyang Huang, Ivan C. Christov and Arezoo M. Ardekani
71^{th} Annual Meeting of the American Physical Society's Division of Fluid Dynamics, Atlanta, Georgia, November 18, 2018.

Universality in Viscous Fluid Spreading and Leveling [Contributed]
Zoë Penko, Ivan Christov and Daihui Lu
Modeling and Simulation Poster Session,2018 SURF Undergraduate Research Symposium, Purdue University, West Lafayette, Indiana, August 2, 2018.

Stability of the Interface Between Two Immiscible Liquids During Injection Into a Tapered HeleShaw Cell [Contributed]
Zihao Lin, Ivan Christov and Daihui Lu
Flow Analysis and Processing Poster Session, 2018 SURF Undergraduate Research Symposium, Purdue University, West Lafayette, Indiana, August 2, 2018.

Computational Analysis of Interfacial Instabilities in Tapered HeleShaw Cells [Contributed]
Ivan Christov and Daihui Lu
Symposium on Interfacial and Nonlinear Flows, 18th U.S. National Congress for Theoretical and Applied Mechanics, Chicago, Illinois, June 7, 2018.

Fluid–Structure Interaction Between a PowerLaw Fluid and a Deformable Microtube or Microchannel [Contributed]
Vishal Anand and Ivan Christov
Symposium on Nano and Micromechanics, 18th U.S. National Congress for Theoretical and Applied Mechanics, Chicago, Illinois, June 5, 2018.

Weakly Nonlinear Computational Analysis on Viscous Fingering in Tapered HeleShaw Cells [Contributed]
Daihui Lu and Ivan Christov
2017 Fall Meeting of the APS Prairie Section, Chicago, Illinois, November 12, 2017.

Fluid–Structure Interaction Between a PowerLaw Fluid and a Deformable Microtube or Microchannel [Contributed]
Vishal Anand and Ivan Christov
2017 Fall Meeting of the APS Prairie Section, Chicago, Illinois, November 12, 2017.

Mixing by cutting and shuffling: The effect of incorporating diffusion [Contributed]
Mengying Wang and Ivan Christov
2017 Fall Meeting of the APS Prairie Section, Chicago, Illinois, November 12, 2017.

Thermodynamics of Coherent Structures near Phase Transitions [Contributed]
Julia M. Meyer and Ivan Christov
Modeling and Simulation Poster Session, 2017 SURF Undergraduate Research Symposium, Purdue University, West Lafayette, Indiana, August 3, 2017.

Modeling fluid–structure interactions in shallow microchannels [Contributed]
Tanmay C. Shidhore and Ivan C. Christov
69^{th} Annual Meeting of the American Physical Society's Division of Fluid Dynamics, Portland, Oregon, November 21, 2016.

Topological defects with powerlaw tails [Contributed]
Ivan C. Christov, Vakhid A. Gani, Elizaveta V. Mrozovskaya and Roman V. Radomskiy
The 2nd International Conference on Particle Physics and Astrophysics, Moscow, Russian Federation, October 12, 2016.

Influence of Heterogeneity on SecondKind SelfSimilar Solutions for Viscous Gravity Currents [Contributed]
Zhong Zheng, Ivan C. Christov and Howard A. Stone
Session on Mathematical Modeling of Transport Processes, 2014 AIChE Annual Meeting, Atlanta, Georgia, November 18, 2014.

Influence of heterogeneity on secondkind selfsimilar solutions for gravity currents [Contributed]
Zhong Zheng, Ivan Christov and Howard Stone
66^{th} Annual Meeting of the American Physical Society's Division of Fluid Dynamics, Pittsburgh, Pennsylvania, November 26, 2013.

Selfsimilar Solutions for Gravity Currents in Heterogeneous Porous [Contributed]
Zhong Zheng, Ivan C. Christov and Howard A. Stone
Poster Session, Carbon Mitigation Initiative (CMI) Annual Meeting, Princeton, New Jersey, April 16–17, 2013.

Cutting & Shuffling: Mixing a Line Segment [Contributed]
Marissa K. Krotter, Ivan C. Christov, Julio M. Ottino and Richard M. Lueptow
Poster Session, Dynamics Days 2013, Denver, Colorado, January 4, 2013.

Fluid displacement under elastic membranes: Dynamics and interfacial instabilities [Contributed]
Talal AlHousseiny, Ivan Christov, Anne Juel and Howard Stone
65^{th} Annual Meeting of the American Physical Society's Division of Fluid Dynamics, San Diego, California, November 20, 2012.

TaylorAris dispersion in the presence of shearenhanced diffusion and variable mean flow [Contributed]
Gregory Rubinstein, Ivan Christov and Howard Stone
65^{th} Annual Meeting of the American Physical Society's Division of Fluid Dynamics, San Diego, California, November 19, 2012.

A Mapping method for mixing with diffusion [Contributed]
Conor P. Schlick, Ivan C. Christov, Paul B. Umbanhowar, Julio M. Ottino and Richard M. Lueptow
65^{th} Annual Meeting of the American Physical Society's Division of Fluid Dynamics, San Diego, California, November 18, 2012.

DynSyst_Special_Topics: A Dynamical Systems Approach to Mixing and Segregation of Granular Matter [Contributed]
Julio M. Ottino, Richard M. Lueptow and Ivan C. Christov
Poster Session, 2011 NSF Engineering Research and Innovation Conference, Atlanta, Georgia, January 4–11, 2011.

Cutting and shuffling—Mixing in Spherical Tumblers [Contributed]
Richard M. Lueptow, Ivan C. Christov, Gabriel Juarez, Julio M. Ottino, Rob Sturman and Stephen Wiggins
63^{rd} Annual Meeting of the American Physical Society's Division of Fluid Dynamics, Long Beach, California, November 22, 2010.

Mixing by cutting and shuffling in 3D tumbled granular flows [Contributed]
R. Sturman, I.C. Christov, G. Juarez, R.M. Lueptow, J.M. Ottino and S. Wiggins
Dynamics Days Europe 2010, Bristol, United Kingdom, September 9, 2010.

Mixing by cutting and shuffling in tumbled granular flows [Invited]
Richard M. Lueptow, Ivan C. Christov, Gabriel Juarez, Julio M. Ottino, Rob Sturman and Stephen Wiggins
DARPA Granular Dynamics Workshop, Arlington, Virginia, February 17, 2010.

Solitons and Quasiparticles: physical relevance of variational approximation [Invited]
Ivan Christov and C.I. Christov
Institute of Nuclear Research and Nuclear Energy at the Bulgarian Academy of Sciences, Sofia, Bulgaria, December 18, 2009.

Nonoscillatory Central Schemes on Unstructured Meshes and Applications [Invited]
Ivan Christov, Bojan Popov and Peter Popov
ExxonMobil Upstream Research Company, Houston, Texas, April 27, 2007.

Analysis of internal gravity waves using the Fourier, scattering, and continuous wavelet transforms [Contributed]
J. Hawkins, I. Christov and A. WarnVarnas
Session on Nonlinear Time Series Analysis in the Geosciences, EGU General Assembly 2007, Vienna, Austria, April 18, 2007.

A feedback algorithm using ocean acoustic modeling to improve shallow water soliton simulations [Invited]
S.A. ChinBing, A.C. WarnVarnas, D.B. King and I. Christov
Special Session on Nonlinear Wave Phenomena in the Physical Sciences: Some Recent Studies, 5^{th} IMACS International Conference on Nonlinear Evolution Equations and Wave Phenomena: Computation and Theory, Athens, Georgia, April 16, 2007.
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