English

Equivariant homotopic distance

Algebraic Topology 2025-10-20 v2

Abstract

We introduce and study the notion of \emph{equivariant homotopic distance} DG(f,g)D_G(f,g) between GG-maps f,g ⁣:XYf,g \colon X \to Y. We show that the equivariant Lusternik-Schnirelmann category and the equivariant topological complexity are particular cases of this notion. This invariant also connects naturally with the equivariant sectional category. What makes DGD_G distinctive, however, is that it provides a flexible framework centered on pairs of maps, within which one can derive results that are not immediate from the general setting. In particular, we establish its basic properties, including homotopy invariance and a categorical proof of the triangle inequality valid in the equivariant context. We also obtain cohomological and dimension-connectivity bounds, and analyze structural applications to Hopf GG-spaces and equivariant fibrations.

Keywords

Cite

@article{arxiv.2508.20485,
  title  = {Equivariant homotopic distance},
  author = {Navnath Daundkar and J. M. García-Calcines},
  journal= {arXiv preprint arXiv:2508.20485},
  year   = {2025}
}

Comments

24 pages. A few structural changes have been made

R2 v1 2026-07-01T05:09:42.942Z