Analysis and Mathematical Physics

Existence and Regularity of Nonlocal Minimal Surfaces

In the '80s, Yau conjectured that every closed Riemannian 3-manifold contains infinitely many smooth minimal hypersurfaces. In this talk, I will present a Yau-type existence result for nonlocal minimal surfaces and discuss how one can recover the classical Yau's conjecture from it. The main tools are min-max methods for the fractional perimeter and a compactness/regularity theory for the associated critical points, which gives smoothness in low dimensions and a small singular set in higher dimensions. Time permitting, I will discuss a broader program about extending these ideas to higher codimension.

Date & Time

March 23, 2026 | 2:30pm – 3:30pm
Add to calendar 03/23/2026 14:30 03/23/2026 15:30 Analysis and Mathematical Physics use-title Topic: Existence and Regularity of Nonlocal Minimal Surfaces Speakers: Michele Caselli, Princeton University More: https://www.ias.edu/math/events/analysis-and-mathematical-physics-78 In the '80s, Yau conjectured that every closed Riemannian 3-manifold contains infinitely many smooth minimal hypersurfaces. In this talk, I will present a Yau-type existence result for nonlocal minimal surfaces and discuss how one can recover the classical Yau's conjecture from it. The main tools are min-max methods for the fractional perimeter and a compactness/regularity theory for the associated critical points, which gives smoothness in low dimensions and a small singular set in higher dimensions. Time permitting, I will discuss a broader program about extending these ideas to higher codimension. Simonyi Hall 101 and Remote Access a7a99c3d46944b65a08073518d638c23

Location

Simonyi Hall 101 and Remote Access

Speakers

Michele Caselli, Princeton University