On Heegaard Floer homology of plumbed three-manifolds with b_1=1
arXiv:math/0405118
Abstract
In this paper we extend the results of \cite{Plumbing} to calculate Ozsváth-Szabó Floer homology group HF+ for a class of negative-semidefinite plumbings with b_1 = 1.
15 pages, 2 figures