activity
20002026
most citedStructure of fundamental groups of manifolds with Ricci curvature bounded below

52 citations · 281 across the 29 of their papers we have counts for

collaborators

35 papers

math.DG2026

Lectures on Alexandrov spaces with curvature bounded below

Vitali Kapovitch, Nina Lebedeva, Anton Petrunin

An introduction to Alexandrov spaces with curvature bounded below. Topics include various comparison conditions, the globalization theorem, tangent spaces and spaces of directions,…

math.DG2023★ 1 cited

Sharp bounds and rigidity for volumes of boundaries of Alexandrov spaces

Qin Deng, Vitali Kapovitch

We obtain sharp volume bounds on the boundaries of Alexandrov spaces with given lower curvature bound, dimension, and radius. We also completely classify the rigidity case and anal…

math.MG2022

On the intrinsic and extrinsic boundary for metric measure spaces with lower curvature bounds

Vitali Kapovitch, Xingyu Zhu

We show that if an Alexandrov space has an Alexandrov subspace of the same dimension disjoint from the boundary of , then the topological boundary of coinc…

math.DG2021

Remarks on manifolds with two sided curvature bounds

Vitali Kapovitch, Alexander Lytchak

We discuss folklore statements about distance functions in manifolds with two sided bounded curvature. The topics include regularity, subsets of positive reach and the cut locus.

math.DG2020★ 17 cited

Structure of Submetries

Vitali Kapovitch, Alexander Lytchak

We investigate the geometric and topological structure of equidistant decompositions of Riemannian manifolds.

math.DG2020★ 1 cited

On gluing Alexandrov spaces with lower Ricci curvature bounds

Vitali Kapovitch, Christian Ketterer, Karl-Theodor Sturm

In this paper we prove that in the class of metric measure spaces with Alexandrov curvature bounded from below the Riemannian curvature-dimension condition with $K\in \m…