I am a visiting assistant professor at the Department of Mathematics at Purdue University.
Previously, I was a PhD student at New York University's Courant Institute of Mathematical Sciences, under the supervision of Professor Fang-Hua Lin.
Email: oalper [at] purdue [dot] edu
Calculus of variations and nonlinear partial differential equations. In particular: harmonic maps and liquid crystals.
Defects of liquid crystals with variable degree of orientation
with Robert Hardt and Fang-Hua Lin,
Calc. Var. PDE, 56(5): 128, 2017.
Rectifiability of line defects in liquid crystals with variable degree of orientation
Arch. Ration. Mech. Anal., 228(1): 309-339, 2018.
Uniqueness of planar tangent maps in the modified Ericksen model
On the singular set of free interface in an optimal partition problem
In Spring 2018 I am teaching Math 26600: Ordinary Differential Equations.