Kristen Hendricks

Associate Professor
Rutgers Mathematics Department
New Brunswick, NJ

Office: Hill Center 515

Email: kristen .hendricks @rutgers .edu

Office Hours: If you are in one of my classes, check your course page below for my office hours. For other matters, email me for an appointment (or find me at department tea most days other than Thursday).

Teaching

In Spring 2025 I am teaching Math 354 Section 05: Linear Optimization and Math 541: Introduction to Algebraic Topology II.
For my past teaching, and other mentoring and service activities, please see here.

Various Organizational Roles at Rutgers:

I am a co-organizer of the Rutgers Geometry/Topology Seminar. If you are on this page, you may also be interested in the Rutgers Symplectic Seminar.
This term I am co-organizing an informal learning seminar, whose schedule can be found here.
I am the mathematics department's coordinator for the DIMACS REU. Please be in touch if you have questions not answered by the website at the link.
I am the faculty adviser for our student AWM chapter and also handle some logistics for the student-led Directed Reading Program.

Research:

I am interested in low dimensional topology, symplectic geometry, and knot theory. Most of my research deals with equivariant versions of Floer-theoretic invariants.
My research is currently partly supported by an NSF Career Grant DMS-2019396.

Papers:

Kristen Hendricks, A rank inequality for the knot Floer homology of double branched covers. Algebraic & Geometric Topology 12 (2012), 2127 - 2178. (Published version) (arXiv link)
Kristen Hendricks, Localization and the the link Floer homology of doubly-periodic knots. Journal of Symplectic Geometry, 13 (2015), 545-608. (Published version) (arXiv link)
Kristen Hendricks, A spectral sequence for the Floer cohomology of symplectomorphisms of trivial polarization class. International Mathematics Research Notices, 2017 (2017), No. 2, 509-528. (Published version) (arXiv link)
Kristen Hendricks and Ciprian Manolescu, Involutive Heegaard Floer homology. Duke Mathematical Journal, 166 (2017), No. 7, 1211-1299. (Published version) (arXiv link)
Kristen Hendricks, Robert Lipshitz, and Sucharit Sarkar, A flexible construction of equivariant Floer cohomology and applications. Journal of Topology, 9 (2016), No. 4, 1153-1236. (Published version) (arXiv link)
Kristen Hendricks, Ciprian Manolescu, and Ian Zemke, A connected sum formula for involutive Heegaard Floer homology. Selecta Mathematica, 24 (2018), No. 2, 1183-1245. (Published version) (arXiv link).
Kristen Hendricks, Robert Lipshitz, and Sucharit Sarkar, A simplicial construction of G-equivariant Floer homology. Proceedings of the London Mathematical Society, 121 (2020), No. 6, 1798-1866. (Published version) (arXiv link)
Kristen Hendricks and Robert Lipshitz, Involutive bordered Floer homology. Transactions of the American Mathematical Society, 372 (2019), No. 1, 389-424. (Published version) (arXiv link)
Kristen Hendricks and Jennifer Hom, A note on knot concordance and involutive knot Floer homology. Proceedings of the Georgia International Topology Conference. 102 (2019). (Published version) (arXiv link)
Kristen Hendricks, Robert Lipshitz, and Sucharit Sarkar, Correction to the paper "A flexible construction of equivariant Floer cohomology and applications". Journal of Topology, 13 (2020), No. 3, 1317-1331. (Published version) (arXiv link)
Kristen Hendricks, Jennifer Hom, and Tye Lidman, Applications of involutive Heegaard Floer homology. Journal of the Institute of Mathematics of Jussieu. (Published version) (arXiv link)
Kristen Hendricks, Tye Lidman, and Robert Lipshitz, Rank inequalities for the Heegaard Floer homology of branched covers. Documenta Mathematica, 27 (2022), 581-612. (Published version) (arXiv link)
Kristen Hendricks, Jennifer Hom, Matthew Stoffregen, and Ian Zemke, Surgery exact triangles in involutive Heegaard Floer homology. Submitted. (arXiv link)
Akram Alishahi, Viktoria Földvári, Kristen Hendricks, Joan Licata, Ina Petkova, and Vera Vértesi, Bordered Floer homology and contact structures. Accepted for Publication by Forum of Mathematics Sigma. (arXiv link)
Kristen Hendricks, Jennifer Hom, Matthew Stoffregen, and Ian Zemke, On the quotient of the homology cobordism group by Seifert spaces. Transactions of the American Mathematical Society, Series B, 9 (2022), 757-781. (Published version) (arXiv link)
Kristen Hendricks, Matthew Issac, and Nicholas McConnell, A note on the involutive invariants of certain pretzel knots. Journal of Knot Theory and its Ramifications, 31 (2022), no. 7. (Published version) (arXiv link)
Kristen Hendricks, Jennifer Hom, Matthew Stoffregen, and Ian Zemke, A note on PL-disks and rationally slice knots. Proceedings of the Conference and Summer School on Frontiers in Geometry and Topology, 109 (2024). (Published version) (arXiv link)
Kristen Hendricks, Jennifer Hom, Matthew Stoffregen, and Ian Zemke, Naturality and functoriality in involutive Heegaard Floer homology. Quantum Topology, doi/10.4171/QT/210. (Published version) (arXiv link)
Kristen Hendricks, Jennifer Hom, Matthew Stoffregen, and Ian Zemke, An involutive dual knot surgery formula. Submitted. (arXiv link)
Kristen Hendricks, Matthew Stoffregen, and Ian Zemke, A note on the involutive invariants of splices. Submitted. (arXiv link)
Kristen Hendricks, Cheuk Yu Mak, and Sriram Raghunath, Symplectic annular Khovanov homology and fixed point localizations. Submitted. (arXiv link)
Kristen Hendricks and Abhishek Mallick, A note on cables and the involutive concordance invariants. Submitted. (arXiv link) Accepted for publication by Bulletin of the London Mathematical Society.

About Me:

Curriculum Vitae (Last updated 4/2025.)