Wall crossing for moduli of stable pairs

Time：Fri., 09:00-10:00 am, Oct. 10, 2025

Venue：Zoom Meeting ID: 262 865 5007 Passcode: YMSC

Organizer：Caucher Birkar，Jia Jia

Speaker：Fanjun Meng

Algebraic Geometry Seminar

Organizers：

Caucher Birkar，贾甲

Speaker：

Fanjun Meng

University of California San Diego

Time：

Fri., 09:00-10:00 am, Oct. 10, 2025

Online：

Zoom Meeting ID: 262 865 5007

Passcode: YMSC

Title:

Wall crossing for moduli of stable pairs

Abstract:

Hassett showed that there are natural reduction morphisms between moduli spaces of weighted pointed stable curves when we reduce weights. I will discuss some joint work with Ziquan Zhuang which constructs similar morphisms between moduli of stable pairs in higher dimension.

About the speaker:

Fanjun Meng is a Postdoctoral Scholar supported by a Simons Collaboration Grant in the Department of Mathematics at University of California San Diego. He is supervised by Professor James McKernan.

Previously, he was a J.J. Sylvester Assistant Professor in the Department of Mathematics at Johns Hopkins University. He obtained his Ph.D. in Mathematics in June 2022 under the supervision of Professor Mihnea Popa.

DATEOctober 9, 2025

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