English

The Thompson-Lyons transfer lemma for fusion systems

Group Theory 2017-01-30 v2

Abstract

In this note, a generalization of the Thompson transfer lemma and its various extensions, most recently due to Lyons, is proven in the context of saturated fusion systems. A strengthening of Alperin's fusion theorem is also given in this setting, following Alperin's own "up and down" fusion.

Keywords

Cite

@article{arxiv.1303.5996,
  title  = {The Thompson-Lyons transfer lemma for fusion systems},
  author = {Justin Lynd},
  journal= {arXiv preprint arXiv:1303.5996},
  year   = {2017}
}

Comments

v1, 7 pages; comments welcome. v2, main theorem restated in stronger form, minor fixes. To appear in Bull. Lond. Math. Soc

R2 v1 2026-06-21T23:47:25.201Z