English

Segal models for equivariant incomplete infinite loop spaces

Algebraic Topology 2025-10-29 v1 K-Theory and Homology

Abstract

We model equivariant infinite loop spaces indexed on incomplete universes via suitable equivariant analogs of Γ\Gamma-spaces. The choice of universe dictates a transfer system which in turn dictates the Segal condition on equivariant Γ\Gamma-spaces. Equivariant Γ\Gamma-spaces themselves come in different but equivalent guises interpolating between categories Γ\Gamma as defined by Segal and ΓG\Gamma_G as defined by Shimakawa. The main application is the construction of Segal KK-theory of normed permutative categories.

Cite

@article{arxiv.2510.24298,
  title  = {Segal models for equivariant incomplete infinite loop spaces},
  author = {Tjark Bantelmann},
  journal= {arXiv preprint arXiv:2510.24298},
  year   = {2025}
}
R2 v1 2026-07-01T07:09:24.146Z