Braids and symplectic four-manifolds with abelian fundamental group

2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/63339We explain how a version of Floer homology can be used as an invariant of symplectic manifolds with $b_1>0$. As a concrete example, we look at four-manifolds produced from braids by a surgery construction. The outcome shows that the invariant is nontrivial; however, it is an open question whether it is stronger than the known ones.9 pages, LaTeXSymplectic GeometryBraids and symplectic four-manifolds with abelian fundamental grouptext