2 papers
math.GT2021
Lattice cohomology and -series invariants of -manifolds
Rostislav Akhmechet, Peter K. Johnson, Vyacheslav Krushkal
An invariant is introduced for negative definite plumbed -manifolds equipped with a spin-structure. It unifies and extends two theories with rather different origins and str…
math.GT2021
On the involutive Heegaard Floer homology of negative semi-definite plumbed 3-manifolds with
Peter K. Johnson
In \cite{MR1957829}, Ozsváth and Szabó use Heegaard Floer homology to define numerical invariants and for 3-manifolds with $H_{1}(Y;\mathbb{Z})\cong \mathb…