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Modern Mathematics Lecture Series

Title:

The Critical 2D Stochastic Heat Flow

Speaker：

Rongfeng Sun 孙嵘枫

National University of Singapore

Time：

Thur., 16:00-17:00, April 9, 2026

Venue：

C548, Shuangqing Complex Building A

Zoom Meeting ID: 271 534 5558

Passcode: YMSC

Abstract:

I will review joint work with F. Caravenna and N. Zygouras on the directed polymer model, the stochastic heat equation (SHE), and the KPZ equation in the critical dimension 2, which eventually led to our construction of the Critical 2D Stochastic Heat Flow (SHF). The SHF provides a candidate solution to the 2D SHE, a critical singular SPDE that lies beyond the scope of existing solution theories, and it gives a rare example of a non-Gaussian scaling limit for a model at its phase transition point in the critical dimension.