collaborators

7 papers

math.GT2025

Involutive bordered Floer homology

Kristen Hendricks, Robert Lipshitz

We give a bordered extension of involutive HF-hat and use it to give an algorithm to compute involutive HF-hat for general 3-manifolds. We also explain how the mapping class group…

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

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.GT2025

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.GT2025

A note on cables and the involutive concordance invariants

Kristen Hendricks, Abhishek Mallick

We prove a formula for the involutive concordance invariants of the cabled knots in terms of that of the companion knot and the pattern knot. As a consequence, we show that any ite…

math.GT2025

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…