Sergio Zamora
zamorabs@bicmr.pku.edu.cn
Assistant Professor
Beijing International Center for Mathematical Research
My research focuses in metric geometry, geometric group theory, and differential geometry.
My Bachelor advisor was Adriana Ortiz-Rodríguez, my PhD advisor was Anton Petrunin, and my Postdoc mentors were Stephan Stadler and Christine Escher.
I also manage the content of the YouTube channel what-is-math.
Convergence of symmetries: nilpotency, dimension, and perfectness
(preprint)
Non-collapsed eGH convergence and dimension
with Jesús Núñez Zimbrón and Jaime Santos Rodríguez
(preprint)
Topological rigidity of small RCD(K,N) spaces with maximal rank
with Xingyu Zhu
Nonlinear Analysis, 2026 (preprint)
Torus covers with controlled volume and diameter
Proceedings of the AMS, 2025 (preprint)
Margulis Lemma on RCD(K,N) spaces
with Qin Deng, Jaime Santos Rodríguez, and Xinrui Zhao
Analysis & PDE, 2025 (preprint)
Limits of almost homogeneous spaces and their fundamental groups
Groups, Geometry, and Dynamics, 2024 (preprint)
Fundamental groups and group presentations with bounded relator lengths
Geometriae Dedicata, 2024 (preprint)
On fundamental groups of RCD spaces
Crelles Journal, 2023 (preprint)
Anderson finiteness for RCD spaces
(preprint)
Tori can't collapse to an interval
Electronic Research Archive, 2020
Moon in a puddle and the four vertex theorem
with Anton Petrunin, and artwork by Ana Cristina Chávez Cáliz
First Betti number and collapse
(preprint)
Fundamental groups of aspherical manifolds that collapse
(preprint)
What is differential geometry: curves and surfaces
with Anton Petrunin, and artwork by Ana Cristina Chávez Cáliz
Textbook and video course