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Hello! I am a postdoctoral researcher at the University of Bonn in the group of Daniel Huybrechts, funded by the ERC HyperK Grant.
I received my Ph.D. from Yale University in 2025, where I worked with Junliang Shen. My current research concerns the geometry of moduli spaces of sheaves, with a focus on the structure of their cohomology rings.
Here is my Curriculum Vitae.
Email: weitepi@math.uni-bonn.de
Traveling:
Enumerative geometry, rationality, derived categories and interactions, Orsay, June 9 - 12.
Geometry of instantons and quivers, Lille, June 22 - 26.
Workshop on Geometric Representation Theory, Amiens, June 29 - July 1.
ICM 2026, Philadelphia, July 23 - 30.
Publications and Preprints:
Brauer groups of smooth loci in linear systems and torsors over Jacobians of plane curves (with M. Hartlieb). In preparation.
On the Chern filtration for the moduli of bundles on curves (with W. Lim and M. Moreira). arXiv: 2410.24008. Submitted.
Cohomological stabilization, perverse filtrations, and refined BPS invariants for del Pezzo surfaces (with J. Shen, F. Si, and F. Zhang). arXiv: 2406.10004. Submitted.
Cohomology rings of the moduli of one-dimensional sheaves on the projective plane (with Y. Kononov, W. Lim, and M. Moreira). arXiv: 2403.06277. Cohomology rings. Submitted.
Cohomological χ-dependence of ring structure for the moduli of one-dimensional sheaves on P2 (with W. Lim and M. Moreira). Forum Math. Sigma. 12 (2024) No. e47, 17 pp. arXiv: 2305.14193. Mathematica codes.
Perverse filtrations, Chern filtrations, and refined BPS invariants for local P2 (with Y. Kononov and J. Shen). Adv. Math. 433 (2023) 109294, 29 pp. arXiv: 2211.06991.
Generators for the cohomology ring of the moduli of one-dimensional sheaves on P2 (with J. Shen). Algebr. Geom. 10 (4) (2023) 504–520. arXiv: 2204.05866.
Last updated May 16, 2026.
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