Dr. Xiang-Sheng Wang

Department of Mathematics
Southeast Missouri State University
Cape Girardeau, Missouri, 63701

Office: JH 203
Phone: 573-651-2803
Email: xswang@semo.edu

How to pronounce the 'X' in my name?
An interview with Jim Spence from Arrow magazine of SEMO
Birth announcement of my baby boy John in Southeast Missourian magazine
First day photos of my baby boy John from Southeast Hospital website




Research Interests


  1. C. Paulhus and X.-S. Wang, Global stability analysis of a delayed SIS epidemic model, Journal of Biological Dynamics (2014), DOI: 10.1080/17513758.2014.931474.
  2. X.-S. Wang, Asymptotics of delay differential equations via polynomials, Asymptotic Analysis, accepted.
  3. B. Costa Lima, M. R. Grasselli, X.-S. Wang and J. Wu, Destabilizing a stable crisis: Employment persistence and government intervention in macroeconomics, Structural Change and Economic Dynamics 30 (2014), 30-51.
  4. X.-S. Wang, D. He, J. J. Wylie and H. Huang, Singular perturbation solutions of steady-state Poisson-Nernst-Planck systems, Physical Review E 89 (2014), 022722.
  5. X. Shi, X.-S. Wang and N. Reid, Saddlepoint approximation of nonlinear moments, Statistica Sinica (2013), DOI: 10.5705/ss.2012.333.
  6. D. Dai, M. E. H. Ismail and X.-S. Wang, Plancherel-Rotach asymptotic expansion for some polynomials from indeterminate moment problems, Constructive Approximation (2013), 40 (2014) 61-104.
  7. X.-S. Wang and J. Wu, Periodic systems of delay differential equations and the dynamics of avian influenza. (Russian) Contemporary Mathematics. Fundamental Directions 45 (2012), 32-42.
  8. X.-S. Wang, H. Wang and J. Wu, Traveling waves of diffusive predator-prey systems: disease outbreak propagation, Discrete and Continuous Dynamical Systems - Series A 32 (2012), 3303-3324.
  9. X.-S. Wang and J. Wu, Seasonal migration dynamics: periodicity, transition delay and finite-dimensional reduction, Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 468 (2012), 634-650.
  10. X.-S. Wang, J. Wu and Y. Yang, Richards model revisited: validation by and application to infection dynamics, Journal of Theoretical Biology 313 (2012), 12-19.
  11. X.-S. Wang and R. Wong, Asymptotics of orthogonal polynomials via recurrence relations, Analysis and Applications 10 (2012), 215-235.
  12. X.-S. Wang and J. Wu, Approximating periodic patterns and dynamic threshold for patchy model of migratory birds with delay, Canadian Applied Mathematics Quarterly 19 (2011), 275-292.
  13. X.-S. Wang and R. Wong, Global asymptotics of the Meixner polynomials, Asymptotic Analysis 75 (2011), 211-231.
  14. X.-S. Wang and R. Wong, Uniform asymptotics of some q-orthogonal polynomials, Journal of Mathematical Analysis and Applications 364 (2010), 79-87.
  15. X.-S. Wang, Asymptotics of the q-theta function. Communications in Mathematical Analysis 7 (2009), 50-54.
  16. X.-S. Wang and R. Wong, Discrete analogues of Laplace's approximation, Asymptotic Analysis 54 (2007), 165-180.

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