James H. Nolen

James H. Nolen
  • Associate Professor of Mathematics
External address: 243 Physics Bldg, Durham, NC 27708
Internal office address: Box 90320, Durham, NC 27708-0320
Phone: (919) 660-2862
Office Hours: 

Mondays, 10:30-12:00
Wednesdays, 2:00-3:30

Research Areas and Keywords

partial differential equations, probability, asymptotic analysis, homogenization
Biological Modeling
asymptotic analysis
PDE & Dynamical Systems
reactive diffusion equations & applications, homogenization of partial differential equations, random media, asymptotic analysis
Physical Modeling
asymptotic analysis
homogenization of partial differential equations, stochastic dynamical systems, random media, asymptotic analysis

I study partial differential equations and probability, which have been used to model many phenomena in the natural sciences and engineering. In some cases, the parameters for a partial differential equation are known only approximately, or they may have fluctuations that are best described statistically. So, I am especially interested in differential equations modeling random phenomena and whether one can describe the statistical properties of solutions to these equations.  Asymptotic analysis has been a common theme in much of my research.  Current research interests include: reaction diffusion equations, homogenization of PDEs, stochastic dynamics, interacting particle systems.

Education & Training
  • Ph.D., University of Texas at Austin 2006

  • B.S., Davidson College 2000

Fellowships, Supported Research, & Other Grants

NSF Postdoctoral Research Fellowship awarded by National Science Foundation (2006 to 2008)

Nolen, J. "A central limit theorem for pulled fronts in a random medium." Networks and Heterogeneous Media 6.2 (2011): 167-194. Full Text

Nolen, J, Xin, J, and Yu, Y. "Bounds on front speeds for inviscid and viscous G-equations." Methods and Applications of Analysis 16.4 (December 2009). (Academic Article)

Mellet, A, Nolen, J, Roquejoffre, J-M, and Ryzhik, L. "Stability of Generalized Transition Fronts." Communications in Partial Differential Equations 34.6 (May 14, 2009): 521-552. Full Text

Nolen, J, and Ryzhik, L. "Traveling waves in a one-dimensional heterogeneous medium." Annales De L'Institut Henri Poincare (C) Non Linear Analysis 26.3 (May 2009): 1021-1047. Full Text

Nolen, J, and Xin, J. "KPP Fronts in 1D Random Drift." Discrete and Continuous Dynamical Systems B 11.2 (2009). (Academic Article)

Nolen, J, and Xin, J. "Asymptotic spreading of KPP reactive fronts in incompressible space-time random flows." Annales de l'Institut Henri Poincare. Annales: Analyse Non Lineaire/Nonlinear Analysis 26.3 (2009): 815-839. Full Text

Nolen, J, and Papanicolaou, G. "Fine scale uncertainty in parameter estimation for elliptic equations." Inverse Problems 25.11 (2009). Full Text

Nolen, J, and Xin, J. "KPP fronts in a one-dimensional random drift." Discrete and Continuous Dynamical Systems - Series B 11.2 (2009): 421-442. Full Text

Nolen, J, and Xin, J. "Variational principle and reaction-diffusion front speeds in random flows." ICIAM07-Proceedings (December 2008): 1040701-1040702. (Academic Article)

Nolen, J, Papanicolaou, G, and Pironneau, O. "A Framework for Adaptive Multiscale Methods for Elliptic Problems." Multiscale Modeling & Simulation 7.1 (January 2008): 171-196. Full Text