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math.GT2018
Surgery on links of linking number zero and the Heegaard Floer -invariant
Eugene Gorsky, Beibei Liu, Allison H. Moore
We study Heegaard Floer homology and various related invariants (such as the -function) for two-component L-space links with linking number zero. For such links, we explicitly d…
math.GT2018
Four genera of links and Heegaard Floer homology
Beibei Liu
For links with vanishing pairwise linking numbers, the link components bound pairwise disjoint surfaces in . In this paper, we describe the set of genera of such surfaces in…
math.GR2018
Geometric infiniteness in negatively pinched Hadamard manifolds
Michael Kapovich, Beibei Liu
We generalize Bonahon's characterization of geometrically infinite torsion-free discrete subgroups of PSL(2, ) to geometrically infinite discrete isometry subgroups in…