Wanchun Shen
(Rosie)
Email: wshen@math.harvard.edu
I am a 4th year math graduate student at Harvard University studying with Prof. Mihnea Popa.
Before that, I was an undergraduate student at the University of Waterloo. There I worked on math problems in several different areas with Professors Kathryn Hare, Kevin Hare and Matthew Satriano.
My CV.
Research interests
I am interested in singularities in algebraic geometry, Hodge theory and algebraic K-theory. In particular, I am trying to understand the higher rational and higher Du Bois singularities that were introduced recently as a refinement of rational and Du Bois singularities, and their relations to birational geometry, deformation theory, as well as negative K-theory.
Papers and preprints
(with Mihnea Popa and Anh Duc Vo) Vanishing theorems for the Du Bois complexes, in preparation.
(with Matthew Satriano) The Du Bois complexes of moduli spaces, in preparation.
(with Sridhar Venkatesh and Anh Duc Vo) On k-Du Bois and k-rational singularities, preprint. arxiv
(with Sridhar Venkatesh and Anh Duc Vo) Local vanishing for toric varieties, preprint. arxiv
(with Kathryn Hare and Kevin Hare) The L^q-spectrum for a class of self-similar measures with overlap, Asian Journal of Mathematics, 2021.
(with Jenna Rajchgot and Matthew Satriano) Some combinatorial cases of the three matrix analog of Gerstenhaber’s theorem, Proceedings of the 2019 AWM
(with Kathryn Hare, Kevin Hare and Brian Morris) The entropy of Cantor-like measures. Acta Mathematica Hungarica, 2019.
Presentations
Du Bois singularities, rational singularities, and beyond, Algebraic Geometry Seminar, Stanford University, March 2024.
Du Bois singularities, rational singularities, and beyond, Geometry and Topology Seminar, University of Waterloo, February 2024.
Du Bois singularities, rational singularities, and beyond, Algebra and Algebraic Geometry Seminar, University of Wisconsin-Madison, December 2023.
Higher Du Bois and higher rational singularities, Birational Geometry Seminar, August 2023.
Higher Du Bois and higher rational singularities for cones, Georgia Algebraic Geometry Symposium, April 2023. slides
Hodge theory for elliptic curves, Trivial Notions Seminar, Harvard University, April 2022.
A survey of Hartshorne's conjecture, Open problems in Algebraic Geometry Seminar, Harvard University, November 2021.
A survey of the three matrix analog of Gerstenhaber's theorem, Canadian Undergraduate Mathematics Conference (CUMC), Queen's University, July 2019.
Self-similar measures, Canadian Undergraduate Mathematics Conference (CUMC), University of Saskachewan, July 2018.
Properties of infinite convolutions, Southwestern Ontario Graduate Mathematics and Statistics Conference (SOGMSC), University of Guelph, June 2018.