Sasaki versus K\'ahler groups

Autor: Kotschick, D., Placini, G.
Rok vydání: 2022
Předmět:
Zdroj: Annali di Matematica (2024)
Druh dokumentu: Working Paper
DOI: 10.1007/s10231-024-01501-8
Popis: We study fundamental groups of compact Sasaki manifolds and show that compared to K\"ahler groups, they exhibit rather different behaviour. This class of groups is not closed under taking direct products, and there is often an upper bound on the dimension of a Sasaki manifold realising a given group. The richest class of Sasaki groups arises in dimension 5.
Comment: 15 pages, comments are welcome!
Databáze: arXiv