Mathematics Colloquia and Seminars

Return to Colloquia & Seminar listing

Inscribed rectangles in Jordan curves

Geometry/Topology

Speaker: Joshua Greene, Boston College and SLMath
Location: 2112 MSB
Start time: Tue, Jun 2 2026, 2:10PM

Description

I will report on joint work with Andrew Lobb.  We make a construction in Floer theory and use it to show that Jordan curves in the Euclidean plane inscribe a positive measure of rectangles.  Our earlier results were about curves with some additional regularity (differentiability, rectifiability), but the main one I will present assumes only continuity.  This talk follows up one I gave in this seminar two years ago, but it will be self-contained and focus on more recent work.  Paper reference: arxiv:2604.17116