Scott N. Armstrong

Department of Mathematics
University of California, Berkeley
Berkeley, CA 94720-3840

Email: sarm@math.berkeley.edu


In Fall 2009 I am moving to Louisiana State University, where I will be a VIGRE Postdoc.


Education

Ph.D. University of California, Berkeley, 2009

B.S. Texas A&M University, 2002


Research Interests

I study nonlinear elliptic and parabolic partial differential equations, and their applications. I am particularly interested in maximum principle methods for non-divergence form equations, and PDE which arise in probability theory. Two of my favorites are the Bellman equation and the infinity Laplace equation.


Publications and preprints.

(with C. K. Smart) An easy proof of Jensen's theorem on the uniqueness of infinity harmonic functions. preprint | arXiv

(with C. K. Smart) A finite difference approach to the infinity Laplace equation and tug-of-war games. preprint | arXiv

(with M. Trokhimtchouk) Long-time asymptotics for fully nonlinear homogeneous parabolic equations. preprint | arXiv

The Dirichlet problem for the Bellman equation at resonance, J. Differential Equations 247 (2009) 931--955. preprint | arXiv | journal

Principal eigenvalues and an anti-maximum principle for homogeneous fully nonlinear elliptic equations, J. Differential Equations 246 (2009) 2958--2987. preprint | arXiv | journal

(with C. J. Hillar) Solvability of symmetric word equations in positive definite letters, J. Lond. Math. Soc. (2) 76 (2007), no. 3, 777--796. pdf | maple file | maple file 2

(With K. Dykema, R. Exel and H. Li) On embeddings of full amalgamated free product $C*$-algebras, Proc. Amer. Math. Soc. 132 (2004), no. 7, 2019--2030. pdf | ps

A list of all of my preprints can be found on the arXiv here.


Ph.D. Thesis

Principal half-eigenvalues of fully nonlinear homogeneous elliptic operators, Ph.D. Thesis, University of California, Berkeley, (2009). pdf. My thesis advisor was Lawrence C. Evans.



Last Updated: June 29, 2009 20:09 PT