Infinitesimal finiteness obstructions
Algebraic Topology
2019-02-05 v2 Group Theory
Abstract
Does a space enjoying good finiteness properties admit an algebraic model with commensurable finiteness properties? In this note, we provide a rational homotopy obstruction for this to happen. As an application, we show that the maximal metabelian quotient of a very large, finitely generated group is not finitely presented. Using the theory of 1-minimal models, we also show that a finitely generated group admits a connected 1-model with finite-dimensional degree 1 piece if and only if the Malcev Lie algebra is the lower central series completion of a finitely presented Lie algebra.
Cite
@article{arxiv.1711.07085,
title = {Infinitesimal finiteness obstructions},
author = {Stefan Papadima and Alexander I. Suciu},
journal= {arXiv preprint arXiv:1711.07085},
year = {2019}
}
Comments
24 pages; accepted for publication in the Journal of the London Mathematical Society