4 papers
On the Legendrian invariant in knot lattice homology
Sarah Zampa
The Ozsváth-Szabó contact invariant of the link of a normal surface singularity equipped with its canonical contact structure was transposed to…
A bound on the equivariant unknotting number
Sarah Zampa
We study how the equivariant signature of strongly invertible knots changes when one of the Boyle-Chen equivariant unknotting moves is applied. It follows form our results that the…
Lecture notes on Heegaard Floer homology
C. -M. Michael Wong, Sarah Zampa
These are the notes for a lecture series on Heegaard Floer homology, given by the first author at the Rényi Institute in January 2023, as part of a special semester titled ``Singul…
New Exotic four-manifolds with fundamental group
Márton Beke, László Koltai, Sarah Zampa
We extend a construction of Stipsicz-Szabó of infinitely many irreducible exotic smooth structures of some closed four-manifolds with even and fundamental group $\mathbb{Z}…