activity
20122026
most citedLink cobordisms and functoriality in link Floer homology

47 citations · 214 across the 26 of their papers we have counts for

collaborators

35 papers

math.GT2026

Link Floer homology, nonformality, and the Borromean rings

Kristen Hendricks, Matthew Stoffregen, Ian Zemke

Our main result is a computation of the full link Floer complex of the Borromean rings. The Borromean rings are well known to be an L-space link. We prove that the full link Floer…

math.GT2025

The link surgery formula and equivariant surgeries

Kristen Hendricks, Abhishek Mallick, Matthew Stoffregen +1

We prove an equivariant version of the Heegaard Floer link surgery formula. As a special case, this gives an equivariant knot surgery formula for equivariant knots in . Our pr…

math.GT2025

Koszul duality and the link surgery formula

Ian Zemke

In previous works, the author described an associative algebra whose -module categories encode the Heegaard Floer Dehn surgery formulas. In this article, we describe the…

math.GT2024

A note on the involutive invariants of splices

Kristen Hendricks, Matthew Stoffregen, Ian Zemke

A natural family of potentially 2-torsion elements in the integer homology cobordism group consists of splices of knots with their mirrors. We show that such 3-manifolds have local…

math.GT2023

Gompf's cork and Heegaard Floer homology

Irving Dai, Abhishek Mallick, Ian Zemke

Gompf showed that for in a certain family of double-twist knots, the swallow-follow operation makes -surgery on into a cork boundary. We derive a general Floer-t…

math.GT2023

A general Heegaard Floer surgery formula

Ian Zemke

We give several new perspectives on the Heegaard Floer Dehn surgery formulas of Manolescu, Ozsváth and Szabó. Our main result is a new exact triangle in the Fukaya category of the…

math.GT2023★ 2 cited

Connected sums and directed systems in knot Floer homologies

Sudipta Ghosh, Ian Zemke

We prove a number of fundamental properties about instanton knot Floer homology. Our arguments rely on general properties of sutured Floer theories and apply also in the Heegaard F…

math.GT2022

Lattice homology, formality, and plumbed L-space links

Maciej Borodzik, Beibei Liu, Ian Zemke

We define a link lattice complex for plumbed links, generalizing constructions of Ozsváth, Stipsicz and Szabó, and of Gorsky and Némethi. We prove that for all plumbed links in rat…

math.GT2022

An involutive dual knot surgery formula

Kristen Hendricks, Jennifer Hom, Matthew Stoffregen +1

We prove an involutive analog of the dual knot surgery formula of Eftekhary and Hedden-Levine. We also compute a small model for the local equivalence class of the involutive dual…

math.GT2022

Naturality and functoriality in involutive Heegaard Floer homology

Kristen Hendricks, Jennifer Hom, Matthew Stoffregen +1

We prove first-order naturality of involutive Heegaard Floer homology, and furthermore construct well-defined maps on involutive Heegaard Floer homology associated to cobordisms be…

math.GT2021

The equivalence of lattice and Heegaard Floer homology

Ian Zemke

We prove Némethi's conjecture: if is a 3-manifold which is the boundary of a plumbing of a tree of disk bundles over , then the lattice homology of coincides with the…

math.GT2021

Bordered manifolds with torus boundary and the link surgery formula

Ian Zemke

In this paper, we develop a theory of bordered using the link surgery formula of Manolescu and Ozsváth. We interpret their link surgery complexes as type- module…

math.GT2021

A note on PL-disks and rationally slice knots

Kristen Hendricks, Jennifer Hom, Matthew Stoffregen +1

We give infinitely many examples of manifold-knot pairs (Y, J) such that Y bounds an integer homology ball, J does not bound a non-locally-flat PL-disk in any integer homology ball…

math.GT2021

Heegaard Floer homology and plane curves with non-cuspidal singularities

Maciej Borodzik, Beibei Liu, Ian Zemke

We study possible configurations of singular points occuring on general algebraic curves in via Floer theory. To achieve this, we describe a general formula for the…

math.GT2021

On the quotient of the homology cobordism group by Seifert spaces

Kristen Hendricks, Jennifer Hom, Matthew Stoffregen +1

We prove that the quotient of the integer homology cobordism group by the subgroup generated by the Seifert fibered spaces is infinitely generated.

math.GT2020★ 7 cited

Surgery exact triangles in involutive Heegaard Floer homology

Kristen Hendricks, Jennifer Hom, Matthew Stoffregen +1

We establish a surgery exact triangle for involutive Heegaard Floer homology by using a doubling model of the involution. We use this exact triangle to give an involutive version o…

math.GT2020★ 3 cited

New Heegaard Floer slice genus and clasp number bounds

András Juhász, Ian Zemke

We define several concordance invariants using knot Floer homology which give improvements over known slice genus and clasp number bounds from Heegaard Floer homology. We also prov…

math.GT2020★ 7 cited

Transverse invariants and exotic surfaces in the 4-ball

András Juhász, Maggie Miller, Ian Zemke

Using 1-twist rim surgery, we construct infinitely many smoothly embedded, orientable surfaces in the 4-ball bounding a knot in the 3-sphere that are pairwise topologically isotopi…

math.GT2019★ 22 cited

Knot cobordisms, bridge index, and torsion in Floer homology

András Juhász, Maggie Miller, Ian Zemke

Given a connected cobordism between two knots in the 3-sphere, our main result is an inequality involving torsion orders of the knot Floer homology of the knots, and the number of…

math.GT2019

Knot Floer homology and strongly homotopy-ribbon concordances

Maggie Miller, Ian Zemke

We prove that the map on knot Floer homology induced by a strongly homotopy-ribbon concordance is injective.

math.GT2019★ 26 cited

Khovanov homology and ribbon concordance

Adam Simon Levine, Ian Zemke

We show that a ribbon concordance between two links induces an injective map on Khovanov homology.

math.GT2019

Knot Floer homology obstructs ribbon concordance

Ian Zemke

We prove that the map on knot Floer homology induced by a ribbon concordance is injective. As a consequence, we prove that the Seifert genus is monotonic under ribbon concordance.…

math.GT2018★ 1 cited

Stabilization distance bounds from link Floer homology

András Juhász, Ian Zemke

We consider the set of connected surfaces in the 4-ball with boundary a fixed knot in the 3-sphere. We define the stabilization distance between two surfaces as the minimal suc…

math.GT2018

Distinguishing slice disks using knot Floer homology

András Juhász, Ian Zemke

We study the classification of slice disks of knots up to isotopy and diffeomorphism using an invariant in knot Floer homology. We compute the invariant of a slice disk obtained by…