**Dr. Sarah Raynor
Professor of Mathematics & Department Chair **

Office: 126 Manchester Hall

Phone: (336) 758-4466

Home Page: http://users.wfu.edu/raynorsg/

Email: raynorsg ‘at’ wfu.edu

**Degrees:**

Yale University, 1998

PhD Massachusetts Institute of Technology, 2003

**Research Interests:** Elliptic and dispersive partial differential equations

**Papers:**

M. Chhetri, S. Raynor, and S. Robinson, “Existence of Multiple Positive Solutions to Some Semipositone Systems,” submitted.

J. Marzuola, S. Raynor, and G. Simpson, “A System of ODEs for a Perturbation of a Minimal Mass Soliton, “to appear, J. Nonlinear Sci.

S. Raynor, “Neumann Fixed Boundary Regularity for an Elliptic Free Boundary Problem,” Comm. Partial Differential Equations, 33 (2008),no. 11, 1975 – 1995.

M. Chhetri, P. Drabek, S. Raynor, and S. Robinson, “Nonvariational Problems with Critical Growth,” Nonlinear Anal. 68 (2008), no. 7, 2092-2103.

J. Colliander, S. Raynor, C. Sulem, and J. D. Wright, “Ground State Mass Concentration in the L^2-Critical Nonlinear Schrodinger Equation Below H^1,” Math. Res. Lett. 12 (2005), no. 2-3, 357–375.

S. Raynor and G. Staffilani, “Low regularity stability of solitons for the KdV equation,” Commun. Pure Appl. Anal. 2 (2003), no. 3, 277–296.

**Classes:**

**Personal Interests: ** Reading, Bridge, Knitting, Hiking