The solution on the geography-problem of non-formal compact (almost) contact manifolds
Algebraic Topology
2026-03-10 v8 Symplectic Geometry
Abstract
Let be a pair of natural numbers. For odd with (resp. ) and (resp. ) we show that there is a non-formal compact (almost) contact -manifold with first Betti number . Moreover, in the case with , the manifold even is simply-connected.
Keywords
Cite
@article{arxiv.2104.03031,
title = {The solution on the geography-problem of non-formal compact (almost) contact manifolds},
author = {Christoph Bock},
journal= {arXiv preprint arXiv:2104.03031},
year = {2026}
}
Comments
ad v8: Theorem 2.2 has been corrected