Special $p$-groups acting on compact manifolds
Differential Geometry
2019-12-24 v2 Group Theory
Abstract
Riera proved at arXiv:1412.6964 that the diffeomorphism group of particular compact manifolds are not Jordan by exhibiting subgroups isomorphic to extra-special -groups of exponent for primes satisfying some conditions. Generalising the methods of that paper, we construct a compact connected smooth real manifold for every natural number whose diffeomorphism group contains not only every extra-special -group, but also every special -group of order independently of its exponent for every prime . We obtain a similar statement about finite Heisenberg groups as well as we display a very explicit counterexample to the conjecture of Ghys about Jordan property of diffeomorphism group of compact manifolds.
Cite
@article{arxiv.1901.07319,
title = {Special $p$-groups acting on compact manifolds},
author = {Dávid R. Szabó},
journal= {arXiv preprint arXiv:1901.07319},
year = {2019}
}
Comments
11 pages, minor adjustments in text