## Selected Presentations & Appearances

Optimal Control Formulation of Transition Path Problems for Markov Jump Processes
- Seminar
· December 18, 2023
- December 18, 2023
Invited Talk
Institute for Financial Studies, Shandong University,

A Selection Principle for Weak KAM Solutions via the Freidlin-Wentzell Large Deviation Principle of Invariant Measures
- Seminar
· December 14, 2023
- December 14, 2023
Invited Talk
Fudan University,

A Selection Principle for Weak KAM Solutions via the Freidlin-Wentzell Large Deviation Principle of Invariant Measures
- Seminar
· December 13, 2023
- December 13, 2023
Invited Talk
Ningbo university,

Optimal Control Formulation of Transition Path Problems for Markov Jump Processes
- Seminar
· December 8, 2023
- December 8, 2023
Invited Talk
Soochow University,

Convex optimization for measures: Transition path and Mean field game for jump processes
- Colloquium
· November 24, 2023
- November 24, 2023
Invited Talk
Research Center for Mathematics, Beijing Normal University and BNU-HKBU United International College (UIC),

Optimal Control Formulation of Transition Path Problems for Markov Jump Processes
- Seminar
· December 18, 2023
- December 18, 2023
Invited Talk
Institute for Financial Studies, Shandong University,

A Selection Principle for Weak KAM Solutions via the Freidlin-Wentzell Large Deviation Principle of Invariant Measures
- Seminar
· December 14, 2023
- December 14, 2023
Invited Talk
Fudan University,

A Selection Principle for Weak KAM Solutions via the Freidlin-Wentzell Large Deviation Principle of Invariant Measures
- Seminar
· December 13, 2023
- December 13, 2023
Invited Talk
Ningbo university,

Optimal Control Formulation of Transition Path Problems for Markov Jump Processes
- Seminar
· December 8, 2023
- December 8, 2023
Invited Talk
Soochow University,

Convex optimization for measures: Transition path and Mean field game for jump processes
- Colloquium
· November 24, 2023
- November 24, 2023
Invited Talk
Research Center for Mathematics, Beijing Normal University and BNU-HKBU United International College (UIC),

Breaking glass optimally and Minkowski's problem for polytopes
- IMS Colloquium
· November 20, 2023
- November 20, 2023
Invited Talk
Chinese University of Hong Kong,

Optimal Control Formulation of Transition Path Problems for Markov Jump Processes
- Numerical Analysis Seminar
· November 20, 2023
- November 20, 2023
Invited Talk
University of Hong Kong,

Weak KAM solutions of Hamilton-Jacobi equations with a section principle from large deviation principle of invariant measures
- Conference on Mathematical theory and application of fluid mechanics
· November 10, 2023
- November 12, 2023
Invited Talk
Beijing University of Technology,

Breaking glass optimally and Minkowski's problem for polytopes
- Colloquium
· October 17, 2023
- October 17, 2023
Invited Talk
Institute of Natural Sciences, Shanghai Jiao Tong University,

Breaking glass optimally and Minkowski's problem for polytopes
- Applied and Computational Differential Geometry and Geometric PDEs
· July 30, 2023
- August 4, 2023
Invited Talk
Banff International Research Station,
Banff, Canada

Breaking Glass Optimally: A Journey into the Mathematics of Motion and Shape
- Data Science Research Center Seminar
· July 24, 2023
- July 24, 2023
Invited Talk
Duke Kunshan University,

Breaking glass optimally and Minkowski's problem for polytopes
- Numerical Analysis and PDE seminar
· June 22, 2023
- June 22, 2023
Invited Talk
University of Lille, France,

Stochastic optimal control and transition paths on continuous/discrete states
- Tianyuan Mathematical Center Conference: Random Dynamical System
· June 14, 2023
- June 17, 2023
Invited Talk
Tianyuan Mathematical Center,
Wuhan, China

Breaking glass optimally and Minkowski's problem for polytopes
- Oxford PDE seminar
· June 12, 2023
- June 12, 2023
Invited Talk
Oxford University,

Asymptotic Analysis of Non-Equilibrium Chemical Reactions in the Thermodynamic Regime using WKB Method
- Asymptotic Behaviors of systems of PDEs arising in physics and biology - 5th edition
· June 5, 2023
- June 9, 2023
Invited Talk
University of Lille, France,

Breaking glass optimally and Minkowski's problem for polytopes
- Lefschetz Center for Dynamical Systems seminar
· April 24, 2023
- April 24, 2023
Invited Talk
Brown University,

A selection principle for weak KAM solutions via Freidlin-Wentzell large deviation principle of invariant measures
- International Conference on New Trends in Computational and Data Science
· December 2022
Invited Talk
Caltech,

Modeling and analysis of a tumor growth model with autophagy
- PDE seminar
· November 29, 2022
Invited Talk
Minzu University of China,

A selection principle for weak KAM solutions via Freidlin-Wentzell large deviation principle of invariant measures
- Applied Mathematics Colloquium
· November 15, 2022
Invited Talk
Columbia University,

A selection principle for weak KAM solutions via Freidlin-Wentzell large deviation principle of invariant measures
- Colloquium
· October 27, 2022
Invited Talk
Tulane University,

A selection principle for weak KAM solutions via Freidlin-Wentzell large deviation principle of invariant measures
- CASA colloquium
· October 26, 2022
Invited Talk
Eindhoven University of Technology,
Netherlands

Macroscopic dynamics for nonequilibrium biochemical reactions from a Hamiltonian viewpoin
- Oberseminar Mathematische Physik
· October 20, 2022
Invited Talk
Universität Tübingen,
Germany

Random batch method for interacting particle systems and mean field limi
- PDE seminar
· October 19, 2022
Invited Talk
Universität Mannheim,
Germany

A selection principle for weak KAM solutions via Freidlin-Wentzell large deviation principle of invariant measures
- MAC Seminar,
· October 4, 2022
Invited Talk
Université Paul Sabatier,
Toulouse, Franc

A selection principle for weak KAM solutions via Freidlin-Wentzell large deviation principle of invariant measures
- Colloquium,
· September 13, 2022
Invited Talk
Beijing International Center for Mathematical Research (BICMR),,
Peking University

A selection principle for weak KAM solutions via Freidlin-Wentzell large deviation principle of invariant measures
- Probability and Statistics Seminar
· September 7, 2022
Invited Talk
University of Kansas,

Droplets with moving contact line and insoluble surfactant: variational derivation and interface computations
- Workshop on interface problems: modeling, theory and numerics,
· September 2022
Invited Talk
Chinese University of Hong Kong, Shenzhen,

Macroscopic dynamics for nonequilibrium biochemical reactions from a Hamiltonian viewpoint
- Minisymposium Computations and Optimal Control for Biochemical System
· September 2022
Invited Talk
SIAM Conference on Mathematics of Data Science,

Thermodynamic limit of chemical master equation via nonlinear semigroup
- PDE seminar
· June 22, 2022
Invited Talk
University of Oxford,
Oxfold, UK

Thermodynamic Limit of Chemical Master Equation via Nonlinear Semigroup
- INS Colloquium
· June 7, 2022
Invited Talk
Shanghai Jiao Tong University,

Thermodynamic Limit of Chemical Master Equation via Nonlinear Semigroup
- Collective Dynamics and Networks workshop
· June 2022
Invited Talk
Duke Kunshan University,

Mean-field limit and large deviation for chemical reaction kinetics from Hamiltonian viewpoint and upwind scheme
- Frontiers in numerical analysis of kinetic equations,
· May 2022
Invited Talk
Isaac Newton Institute for Mathematical Sciences,
Cambridge, UK

Random batch method for interacting particle systems
- CCAM seminar
· April 18, 2022
Invited Talk
Purdue University,

Macroscopic dynamics for nonequilibrium biochemical reactions from a Hamiltonian viewpoin
- Clements Scientific Computing Seminar Series
· March 4, 2022
Invited Talk
Southern Methodist University,

Macroscopic dynamics for nonequilibrium biochemical reactions from a Hamiltonian viewpoint
- Special Session: Recent Developments of Variational Methods in Deterministic and Stochastic Systems
· March 2022
Invited Talk
AMS Spring Central Sectional Meeting,

Coagulation-Fragmentation model without detailed balance for animal group-size statistics
· September 11, 2013
Lecture
CSCAMM/KI-Net Seminar, University of Maryland

Coagulation-Fragmentation model without detailed balance for animal group-size statistics
· August 8, 2013
Lecture
Academia Sinica, China

Phase transitions, hysteresis, and hyperbolicity for self-organized alignment dynamics
· August 1, 2013
Lecture
11th workshop on nonlinear PDE, Beijing University of Technology

The dynamic and steady states for multi-dimensional Keller-Segel model with the diffusion exponent m > 0
· July 26, 2013
Lecture
Northeast Normal University, Changchun, China

Phase transitions, hysteresis, and hyperbolicity for self-organized alignment dynamics
· July 15, 2013
Lecture
Seminar of the Institute of Mathematics, Peking University

Phase transitions, hysteresis, and hyperbolicity for self-organized alignment dynamics
· June 25, 2013
Lecture
Séminaire de l’équipe MIP, Institut de Mathématiques de Toulouse, Université Paul Sabatier

Global weak solution for kinetic models of active swimming and passive suspensions
· May 1, 2013
Lecture
The International Conference on Mathematical Modeling and Computation (ICMMC2013), Wuhan Univeristy

The dynamic and steady states for multi-dimensional Keller-Segel model with the diffusion exponent m>0
· February 21, 2013
Lecture
PDE seminar, University of Maryland

Phase transitions for self-organized dynamics and sweeping networks
· January 1, 2013
Lecture
conference on "Transport Models for Collective Dynamics in Biological Systems", NCSU

Estimate on Laplace-Leray commutator and application to the Navier-Stokes equation in a bounded domain
· December 11, 2012
Lecture
Seminar, CEREMADE, Université de Paris, Dauphine, France

Phase transition for Smoluchowski equation
- Seminar
· November 22, 2012
Lecture
Seminar, University of Rennes, France,
Seminar, University of Rennes, France

Global weak solution for kinetic models of active swimming and passive suspensions
· October 9, 2012
Lecture
seminar of Applied Maths of the Institut de Mathematiques de Toulouse, France

Phase transition of self-alignment in flocking dynamics
· September 7, 2012
Lecture
"Applied Partial Differential Equations in Physics, Biology and Social Sciences: Classical and Modern Perspectives'', Bellaterra, Spain

Multi-dimensional Keller-Segel model with supercritical diffusion exponent
· August 7, 2012
Lecture
"2012 International Conference on Applied Mathematics'', Morningside Center of Mathematics, China

Multi-dimensional Keller-Segel model with supercritical diffusion exponent
· July 17, 2012
Lecture
"One-day workshop on mathematical topics of fluid dynamics'', Academia Sinica, China

Viscek flocking dynamics and phase transition
· June 28, 2012
Lecture
"14th International Conference on Hyperbolic Problems: Theory, Numerics, Applications'', Università di Padova, Italy

Bacterium swimming, flocking dynamics and phase transition
· June 27, 2012
Lecture
Math Literature Seminar, Tsinghua, China

Mathematical analysis of flocking dynamics in biology and social science
· June 19, 2012
Lecture
USA Census Bureau

Convergence of a Particle Method and Global Weak Solutions for a Family of Evolutionary PDEs
· December 15, 2011
Lecture
Applied and Numerical Analysis Seminar, University of Crete, Greece

Asymptotic-Preserving schemes for kinetic–fluid modeling of disperse two-phase flows
· December 8, 2011
Lecture
Applied and Numerical Analysis Seminar, University of Crete, Greece

Global weak solution for kinetic models of active swimming and passive suspensions
· November 23, 2011
Lecture
Colloquium of the Department of Applied Mathematics, University of Crete, Heraklion, Greece

Dynamics of orientational alignment and phase transition
· October 20, 2011
Lecture
Colloquium, Department of Mathematics, Tulane university

Pressure boundary condition and projection method
· September 1, 2011
Lecture
"Modern Techniques in the Numerical Solution of Partial Differential Equations'', Crete, Greece

Hydrodynamics of Vicsek self-alignment interactions
· August 2, 2011
Lecture
colloquium, Capital Normal University

Multi-dimensional degenerate Keller-Segel system with critical diffusion exponent 2n/(n+2)
· August 1, 2011
Lecture
"International Conference on Applied Mathematics and Statistics'', Renmin University, Beijing

Hydrodynamics of self-alignment interactions with precession and derivation of the Landau-Lifschitz-Gilbert equation
· July 13, 2011
Lecture
Applied math Seminar, Shanghai Jiao Tong University

Dynamics of orientational alignment and phase transition
· June 1, 2011
Lecture
International Conference on Applied and Computational Mathematics and Interdisciplinary Research, Nankai University

Dynamics of orientational alignment and phase transition
· April 20, 2011
Lecture
CSCAMM seminar, University of Maryland

Dynamics of orientational alignment and phase transition
· April 6, 2011
Lecture
Numerical Methods for PDEs seminar, MIT

Dynamics of orientational alignment and phase transition
· February 11, 2011
Lecture
Colloquium, Georgetown University

Dynamics of orientational alignment and phase transition
· February 1, 2011
Lecture
workshop on "Pedestrian Traffic Flow", SAMSI, NC

Asymptotic-preserving schemes for some kinetic equations
· January 1, 2011
Lecture
Workshop on "Numerical Methods for stiff problems in Hamiltonian systems and kinetic equations", Saint-Malo, France

Modeling and analysis of collective behavior of self-propelled agents
· December 1, 2010
Lecture
Colloquium, Beijing University of Posts and Telecommunications

Dynamics of orientational alignment and phase transition
· December 1, 2010
Lecture
Fifth International Congress of Chinese Mathematicians, Beijing, China

Dynamics of orientational alignment and phase transition
· November 18, 2010
Lecture
Colloquium, Tsinghua University,China

Estimate on commutator of the Laplacian and Leray projection operators and application to Navier-Stokes equation in bounded domain
· November 12, 2010
Lecture
Colloquium, Wuhan University, China

Dynamics of orientational alignment and phase transition
· November 12, 2010
Lecture
Seminar, Huazhong Normal University, CHina

Modeling and analysis of collective behavior of self-propelled agents
· November 11, 2010
Lecture
Seminar, Huazhong University of Science and Technology

Dynamics of orientational alignment and phase transition
· November 1, 2010
Lecture
Conference on Nonlinear PDEs, Beijing University of Technology, China

Modeling and analysis of collective behavior of self-propelled agents
· October 19, 2010
Lecture
Colloquium, Capital Normal University, Beijing

Dynamics of orientational alignment and phase transition
· October 1, 2010
Lecture
2010 NIMS Thematic Program Workshop on Conservation Laws, Plasma and Related Fields, Seoul National University, South Korea

Analysis of dynamics of Doi-Onsager phase transition
· September 29, 2010
Lecture
Colloquium, Institute of Mathematics, Chinese Academy of Sciences

Analysis of Dynamics of Doi-Onsager Phase Transition
· September 6, 2010
Lecture
Isaac Newton Institute for Mathematical Sciences, Cambridge, UK

Estimate on commutator of the Laplacian and Leray projection operators and application to Navier-Stokes equation in bounded domain
· September 3, 2010
Lecture
Isaac Newton Institute for Mathematical Sciences, Cambridge, UK

Asymptotic-preserving schemes for some kinetic equations
· August 31, 2010
Lecture
Isaac Newton Institute for Mathematical Sciences, Cambridge, UK

Some estimates on collective behavior of self-propelled biological agents
· December 3, 2009
Lecture
Marketplace of Ideas, Center for Theoretical and Mathematical Science, Duke University

Asymptotic-preserving schemes for fluids equations and kinetic equations
· November 17, 2009
Lecture
Numerical Analysis Seminar, North Carolina State University

Modeling and analysis of collective behavior of self-propelled agents
· November 6, 2009
Lecture
Applied Mathematics Seminar, Tulane university

The challenge of simulating fluid flow accurately in the presence of boundaries
· November 5, 2009
Lecture
Colloquium, Tulane University

Analysis and computation of Navier–Stokes equation in bounded domains
· October 5, 2009
Lecture
Applied and Computational Analysis Seminar, University of Cambridge, UK

Modeling and analysis of collective behavior of self-propelled agents
· September 4, 2009
Lecture
Applied Math & PDE Seminar, University of Wisconsin, Madison

Controlling numerical dissipation and time stepping in some multi-scale kinetic/fluid simulations
· September 1, 2009
Lecture
CSCAMM Workshop on Kinetic Description of Multiscale Phenomena, Maryland

Modeling and analysis of collective behavior of self-propelled agents
· August 19, 2009
Lecture
Colloquium, National University of Singapore

Some numerical analysis issues in material and fluids simulations
· August 1, 2009
Lecture
Workshop on Mathematical Theory and Computational Methods in Materials Sciences, IMS/NUS, Singapore

A simple proof of the Cucker-Smale flocking dynamics and mean-field limit
· July 1, 2009
Lecture
Workshop on Kinetics and statistical methods for complex particle systems, Lisbon, Portugal

A simple proof of the Cucker-Smale flocking dynamics and mean-field limit
· July 1, 2009
Lecture
ICMS Workshop on Kinetic and Mean-field models in the Socio-Economic Sciences, Edinburgh, UK,

Asymptotic-preserving schemes for fluids equations and kinetic equations
· June 9, 2009
Lecture
Seminaire Methodes Numeriques pour les problemes hyperboliques, Universite Pierre et Marie Curie, France,

The challenge of simulating fluid flow accurately in the presence of boundaries
· June 8, 2009
Lecture
groupe de travail, Universités Paul Sabatier, France

Pressure and projection methods for viscous incompressible flows
· May 11, 2009
Lecture
PDE seminar, Oxford University, UK

A new approach in analysis and computation of Navier-Stokes equation in bounded domain
· March 12, 2009
Lecture
Scientific Computing - Numerical Analysis Seminar, Universite Bordeaux 1, France

The challenge of simulating incompressible fluid flow accurately in the presence of boundaries
· January 30, 2009
Lecture
Colloquium, Department of Mathematics, Howard University

All speed asymptotic-preserving schemes for compressible flows
· August 1, 2008
Lecture
Recent Developments in Numerical Methods for Nonlinear Hyperbolic Partial Differential Equations and their Applications, Banff Int'l Research Station for Math Innovation and Discovery, Canada

A simple proof of Cucker-Smale flocking dynamics and the mean field limit
· July 25, 2008
Lecture
Applied Math Seminar, National Taiwan University, Taiwan

A simple proof of Cucker-Smale flocking dynamics and the mean field limit}
· July 24, 2008
Lecture
Applied and Computational Math Seminar, National Tsing Hua University, Taiwan

Mach number uniform asymptotic preserving schemes for fluids and plasmas
· July 14, 2008
Lecture
Seminar on Applied Mathematics, Inst. of Math., Academia Sinica, Taiwan

The challenge of simulating incompressible fluid flow accurately in the presence of boundaries
· May 9, 2008
Lecture
Applied and Computational Mathematics Seminar, UNC Charlotte

The challenge of simulating incompressible fluid flow accurately in the presence of boundaries
· May 6, 2008
Lecture
Physics Colloquium, Duke University

Computation of incompressible flow past a sphere and local behavior of boundary layer separation
· April 1, 2008
Lecture
CNCS Seminar, Duke University

A simple proof of the Cucker-Smale flocking dynamics and mean-field limit,
· April 1, 2008
Lecture
AMS regional meeting, mini-symposium: "Special Session on Numerical Solution of Partial Differential Equations and Applications", NCSU

A simple proof of Cucker-Smale flocking dynamics and the mean field limit
· March 21, 2008
Lecture
Brown Bag seminar, Duke University

On computation of incompressible flow past a sphere
· March 10, 2008
Lecture
Seminaire du laboratoire, Laboratoire MIP, Universite Paul Sabatier, Toulouse, France

Finite element Navier-Stokes solvers based on an unconstrained reformulation
· March 4, 2008
Lecture
Applied Math Seminar, University of Delaware, Newark

Finite element Navier-Stokes solvers based on an unconstrained reformulation
· February 22, 2008
Lecture
Applied Math & PDE Seminar, University of Wisconsin, Madison

## Outreach & Engaged Scholarship

Unknown - Promotion and tenure external evaluators for various universities
· January 1, 2012
Other
Other Service to the Community

## Service to the Profession

Associate editor
- Communications on Applied Mathematics and Computation
·
2018
Editorial Activities
Springer,

Associate editor
- Annals of Mathematical Sciences and Applications
·
2015
Editorial Activities

Member of the Steering Committee for the Tsinghua Sanya International Mathematics Forum
·
2013
Editorial Activities

Member of the Steering Committee for the Tsinghua Sanya International Mathematics Forum
·
2013
Editorial Activities

Chair of the international committee for the oral exam in the section Applied and Computational Mathematics for S. T. Yau College Mathematics Contests
·
2013
Editorial Activities

Associate editor
- Communications on Applied Mathematics and Computation
·
2018
Editorial Activities
Springer,

Associate editor
- Annals of Mathematical Sciences and Applications
·
2015
Editorial Activities

Member of the Steering Committee for the Tsinghua Sanya International Mathematics Forum
·
2013
Editorial Activities

Chair of the international committee for the oral exam in the section Applied and Computational Mathematics for S. T. Yau College Mathematics Contests
·
2013
Editorial Activities

Tutorial Lectures for Program: "Partial Differential Equations in Kinetic Theories", Newton Institute, Cambridge, UK
·
August 2010
- September 2010
Other

panelist : NSF Numerical Methods (P100833) panel
·
March 2010
Committee Service
NSF

Organizer Committee : IMA Workshop on Analysis and Computation of Incompressible Fluid Flow
·
February 2010
Event/Organization Administration
Institute for Mathematics and its Applications (IMA), Minneapolis

exterior doctoral committee for Baver Okutmustur, University Paris VI
·
2010
Editorial Activities

Organizer Committee, Singapore : Two Month Program on Mathematical Theory and Numerical Methods for Computational Materials Simulation and Design
·
July 1, 2009
- August 30, 2009
Event/Organization Administration

Organizer Committee, Singapore : Two Month Program on Mathematical Theory and Numerical Methods for Computational Materials Simulation and Design
·
July 2009
- August 2009
Event/Organization Administration

Managing Editor for journal ``Methods and Applications of Analysis ''
·
2008
Editorial Activities
International Press,

Co-Editor for journal ``Journal of Hyperbolic Differential Equations
·
2004
- 2022
Editorial Activities
World Scientific,

## Service to Duke

Co-director
. Zu Chongzhi Center for Mathematics and Computational Sciences
·
2019
Event/Organization Administration
Duke Kunshan University,