Volume 194, Issue 2 – September 2021

The threshold conjecture for the energy critical hyperbolic Yang–Mills equation

Pages 393-473 by Sung-Jin Oh, Daniel Tataru

Thresholds versus fractional expectation-thresholds

Pages 475-495 by Keith Frankston, Jeff Kahn, Bhargav Narayanan, Jinyoung Park

Inscribed rectangles in a smooth Jordan curve attain at least one third of all aspect ratios

Pages 497-508 by Cole Hugelmeyer

The rectangular peg problem

Pages 509-517 by Joshua Evan Greene, Andrew Lobb

Isolation of cuspidal spectrum, with application to the Gan–Gross–Prasad conjecture

Pages 519-584 by Raphaël Beuzart-Plessis, Yifeng Liu, Wei Zhang, Xinwen Zhu