 April 12, 2023, AMS Spring Eastern Virtual Sectional Meeting, Online
Title: Global analysis of a delayed cholera model with nonlocal spatial heterogeneity
 March 1819, 2023, AMS Spring Southeastern Sectional Meeting, Georgia Institute of Technology
Title: Global dynamics of a delayed viral infection model with immune responses and two infection modes
 January 47, 2023, Joint Mathematics Meetings, Boston, Massachusetts
Title: Spatiotemporal patterns of a structured spruce budworm diffusive model
 November 46, 2022, SIAM TexasLouisiana Sectional Meeting, University of Houston
Title: Global dynamics of a cholera model with two nonlocal and delayed transmission mechanisms
 October 12, 2022, The 7th Annual Meeting of SIAM Central States Section, Oklahoma State University
Title: The condition number of a Vandemondelike matrix arising from a direct parallelintime algorithm
 June 1317, 2022, The 16th International Symposium on Orthogonal Polynomials, Special Functions and Applications, Online
Title: Applications of orthogonal polynomials in parallel computation and numerical integration
 April 69, 2022, Joint Mathematics Meetings, Online
Title: Threshold dynamics of a nonlocal and delayed cholera model in a spatially heterogeneous environment
 January 1014, 2022, The 9th International Conference on Computational Methods and Function Theory, Online
Title: Applications of orthogonal polynomials in numerical analysis
 December 27, 2021, Canadian Mathematical Society Winter Meeting, Online
Title (1st talk): Global analysis of a viral infection model with celltocell transmission and immune chemokines
Title (2nd talk): Error bounds for the asymptotic expansions of the Hermite polynomials
 January 69, 2021, Joint Mathematics Meetings, Online
Title: Complex dynamics in a delay differential equation with two delays in tick growth with diapause
 October 1618, 2020, SIAM TexasLouisiana Sectional Meeting, Online
Title: Resonance of periodic combination antiviral therapy and intracellular delays in virus model
 January 1518, 2020, Joint Mathematics Meetings, Denver, Colorado
Title: Optimal control of a sizestructured model for metastatic cancer treatment
 July 15, 2019, Workshop on Mathematical Modeling and Analysis of Population Dynamics, Guangzhou University
Title: Dirichlet problem for a delayed diffusive hematopoiesis model
 June 810, 2019, The Thirteenth International Conference on Recent Advances in Applied Dynamical Systems, Hangzhou Normal University
Title: Optimal control of a PDE tumor model
 May 2426, 2019, Workshop on Differential Equations with Applications, Chang'an University
Title: Multiplescale analysis in an ion channel model
 February 1516, 2019, Scientific Computation Around Louisiana, Tulane University
Title: Numerical optimal control of a sizestructured PDE model for metastatic cancer treatment
 December 710, 2018, Canadian Mathematical Society Winter Meeting, Vancouver, Canada
Title: Asymptotic analysis of difference equations
 October 57, 2018, SIAM TexasLouisiana Sectional Meeting, Louisiana State University
Title: Viral dynamics revisited: partial degeneracy and spatial heterogeneity
 July 25August 15, 2018, Summer Research Institute on qSeries, Nankai University
Title: On quasiorthogonal polynomials
 July 1011, 2018, PDEs from Biology, Ecology and Life Sciences: Models and Analysis, Hong Kong Polytechnic University
Title: Steadystate and dynamical solutions of PoissonNernstPlanck systems
 July 59, 2018, The 12th AIMS Conference on Dynamical Systems, Differential Equations and Applications, Taipei, Taiwan
Title: Joint impact of cellfree and celltocell transmissions in viral dynamics
 June 810, 2018, The Twelfth International Conference on Recent Advances in Applied Dynamical Systems, Chongqing Normal University
Title: Dynamics of an ion channel model
 June 48, 2018, International Conference on Applied Mathematics, City University of Hong Kong
Title: Aysmptotic analysis of timedependent PoissonNernstPlanck systems
 January 1013, 2018, Joint Mathematics Meetings, San Diego, California
Title: Traveling waves in epidemic models: nonmonotone diffusive systems with nonmonotone incidence rates
 August 28September 1, 2017, Workshop on Wave Transport of Ionic Species, Fields Institute
Title: The dynamics of PoissonNernstPlanck systems
 June 59, 2017, International Conference on Special Functions: Theory, Computation, and Applications, City University of Hong Kong
Title: Asymptotic expansion of orthogonal polynomials via difference equations
 June 25, 2017, ChinaCanada International Conference on Disease Modelling, Shanghai University
Title: Global dynamics a coupled epidemic model
 January 47, 2017, Joint Mathematics Meetings, Atlanta, Georgia
Title: Agestructure model with periodic mature probability
 December 1216, 2016, Mathematical Modelling and Computation in Medicine/Biology, Yau Mathematical Sciences Center
Title: Computation of dynamic thresholds for bird migration models
 May 30June 2, 2016, International Conference on Applied Mathematics, City University of Hong Kong
Title: Asymptotic solutions of linear difference equations
 January 69, 2016, Joint Mathematics Meetings, Seattle, Washington
Title: Asymptotic analysis of difference equations
 October 24, 2015, The 5th International Conference on Mathematical Modeling and Analysis of Populations in Biological Systems, Western University
Title: Transmission dynamics of avian influenza
 August 1014, 2015, The 8th International Congress on Industrial and Applied Mathematics, Beijing, China
Title: Asymptotic analysis of associated orthogonal polynomials via threeterm recurrence relations
 April 1112, 2015, The 1st Annual Meeting of SIAM Central States Section, Missouri University of Science and Technology
Title: A population model with age structure and periodically distributed time delay
 January 1013, 2015, Joint Mathematics Meetings, San Antonio, Texas
Title: Periodic systems of delay differential equations and the dynamics of avian influenza
 December 15, 2014 International Conference on Applied Mathematics in honor of Professor Roderick S. C. Wong's 70th birthday, City University of Hong Kong
Title: PlancherelRotach asymptotics of secondorder difference equations with linear coefficients
 August 47, 2014, SIAM Conference on the Life Sciences, Charlotte, North Carolina
Title: Basic reproductive ratios in ecosystems and disease models
 May 2630, 2014, Constructive Functions 2014 in honor of Ed Saff's 70th birthday, Vanderbilt University
Title: Asymptotics of hypergeometric orthogonal polynomials via difference equations
 October 46, 2013, The 4th International Conference on Mathematical Modeling and Analysis of Populations in Biological Systems, Texas Tech University
Title: Agestructure model with periodically distributed delay
 July 2729, 2013, The 5th Atlantic Association for Research in Mathematical Sciences (AARMS) Annual Workshop on Mathematical Biology, Memorial University of Newfoundland
Title: Pulsating waves of a partially degenerate reactiondiffusion system in a periodic habitat
 May 2024, 2013, International Conference on Approximation Theory and Applications, City University of Hong Kong
Title: Singular perturbation solutions of steadystate PoissonNernstPlanck systems
 January 912, 2013, Joint Mathematics Meetings, San Diego, California
Title (1st talk): Traveling waves of diffusive predatorprey systems: disease outbreak propagation
Title (2nd talk): Uniform asymptotics of some qorthogonal polynomials
 August 1819, 2012, The 4th Atlantic Association for Research in Mathematical Sciences (AARMS) Annual Workshop on Mathematical Biology, Dalhousie University
Title: Avian influenza, migratory birds and dynamical threshold
 June 5July 3, 2012, Sojourns in Nonlinear Economics, Fields Institute
Title: Persistence theory applied to Keen's model  a link between mathematical biology and mathematical economics
 June 2428, 2012, Canadian Applied and Industrial Mathematics Annual Meeting, Fields Institute
Title: Threshold dynamics of avian influenza spread
 December 1011, 2011, International Workshop on Asymptotic Analysis, City University of Hong Kong
Title: Asymptotic analysis in biological mathematics
 August 1314, 2011, The 3rd Atlantic Association for Research in Mathematical Sciences (AARMS) Annual Workshop on Mathematical Biology, Memorial University of Newfoundland
Title: Asymptotic analysis in migration ecology and simple SIR epidemiology
 July 2530, 2011, The 5th Geoffrey J. Butler Memorial Conference on Differential Equations and Population Biology, University of Alberta
Title: Approximating the extinction threshold of spatial dynamics of migratory birds
 July 1822, 2011, The 7th International Congress on Industrial and Applied Mathematics, Vancouver, Canada
Title: Asymptotic analysis in migration ecology and simple SIR epidemiology
 April 68, 2011, International Conference on Special Functions in the 21st Century: Theory and Applications, National Institute of Standards and Technology
Title: Global asymptotics of the Meixner polynomials
 March 710, 2010, The 13th International Conference on Approximation Theory, San Antonio, Texas
Title: Asymptotics of orthogonal polynomials and order reduction method for difference equations
 June 1922, 2009, International Conference on Asymptotic Analysis and Infinitedimensional Dynamical Systems, City University of Hong Kong
Title: Uniform asymptotics of the Meixner polynomials
 April 27  May 1, 2009, Shanks Workshop on Constructive Approximation, Vanderbilt University
Title: Uniform asymptotics of the Meixner polynomials
