English

Definable $\mathcal C^r$ structures on definable topological groups in d-minimal structures

Logic 2024-07-24 v2

Abstract

Definable topological groups whose topologies are affine have definable Cr\mathcal C^r structures in d-minimal expansions of ordered fields, where rr is a positive integer. We prove this fact using a new notion called partition degree of a definable set. Basic properties of partition degree are also studied.

Keywords

Cite

@article{arxiv.2404.15647,
  title  = {Definable $\mathcal C^r$ structures on definable topological groups in d-minimal structures},
  author = {Masato Fujita},
  journal= {arXiv preprint arXiv:2404.15647},
  year   = {2024}
}
R2 v1 2026-06-28T16:04:43.743Z