Welcome

About Me

My name is Dashen Yan (in Chinese：严大燊). I am a fifth year Phd student at Mathematics Department, Stony Brook University. My advisor is Claude LeBrun. I am intersted in the special holonomy and related problems. Currently, I am working on the geometric structure near the singular fibers under the adiabatic limit along some special fibrations (e.g. holomorphic fibration on Calabi-Yau manifolds and Kovalev-Lefschetz fibration on G2 manifolds).

I am currently on jobmarket for postdoctoral position. Here is my CV (2025/10/12)

Preprint

On nondegenerate Z_2 harmonic 1-forms with shrinking branching set, 2025
A construction of non-degenerate Z_2 harmonic functions on R^n, 2025, submitted
A gluing theorem for collapsing warped QAC Calabi-Yau manifolds, 2024, submitted

Research Talks & Lectures

Geometry & Topology seminar, Duke University, October 2025
Lightening Talk At Summer School: Invitation To Complex Geometry, Erdos Center, August 2025
Geometry and Topology seminar, Zhejiang University, June 2025
MCM Lecture, Chinese Academy of Science, June 2025
BIMSA-BIT Differental Geometry Seminar, BIMSA & BIT, June 2025
YMSC Topology Seminar, YMSC, June 2025
Differential Geometry Working Seminar & Geometry and Topology Seminar, University of Waterloo, May 2025
Seminar in IGP, Institute of Geometry and Physics, January 2025
Geometry and Topology Seminar, Chineses Academy of Science, December 2024
Geometry and Topology Seminar, Stony Brook University, November 2024

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