Title image
Floer Homology Lab

Fan Ye at Niagara Falls, taken by Zhenkun Li

Fan Ye   叶   帆 (Yè4 Fān1)

Assistant Professor
Peking University, School of Mathematical Sciences
Email: [email protected]
CV


About

I am an assistant professor at Peking University.

Previously, I was a Benjamin Peirce Fellow and a Simons Collaboration Postdoc at the Department of Mathematics at Harvard University, mentored by Peter Kronheimer.

I completed my Ph.D. in Maths at University of Cambridge under the supervision of Jacob Rasmussen.

Research Interests

I am interested in low-dimensional topology, especially knot theory, gauge theory, and Floer homology. Related topics include:

  • Heegaard Floer, Seiberg-Witten Floer, instanton Floer, symplectic Floer homology
  • Embedded contact homology, Khovanov homology, Khovanov–Rozansky homology
  • Contact topology, quantum topology, geometric analysis, mathematical physics

Publications

[17] An infinity-categorical TQFT from instantons
        Single author, with Appendix C by Longke Tang
        Submitted | arXiv:2606.29902 | PDF

[16] Monopole triangle over integers
        Joint with Haochen Qiu
        Submitted | arXiv:2606.29882 | PDF | Slides

[15] Instanton 2-torsion and fibered knots
        Joint with Deeparaj Bhat and Zhenkun Li
        Submitted | arXiv:2512.24206 | PDF | Talk

[14] Singular instanton homology of dual knots
        Single author
        Submitted | arXiv:2511.19883 | PDF

[13] Instanton dimensions of knot surgeries over arbitrary fields
        Joint with Zhenkun Li
        Submitted | arXiv:2511.17877 | PDF

[12] Instanton 2-torsion and Dehn surgeries
        Joint with Zhenkun Li
        Submitted | arXiv:2508.03394 | PDF

[11] 2-torsion in instanton Floer homology
        Joint with Zhenkun Li
        Adv. Math. 472:Paper No. 110289, 55, 2025
        arXiv:2405.16252 | PDF

[10] Knot surgery formulae for instanton Floer homology II: applications
        Joint with Zhenkun Li
        Math. Ann. 391:6291–6371, 2025
        arXiv:2209.11018 | PDF

[9] The guts of nearly fibered knots
        Joint with Zhenkun Li
        Algebr. Geom. Topol. 26(4): 1385–1393, 2026
        arXiv:2208.05382 | PDF

[8] Knot surgery formulae for instanton Floer homology I: the main theorem
        Joint with Zhenkun Li
        Geom. Topol. 29(5): 2269–2342, 2025
        arXiv:2206.10077 | PDF

[7] Small Dehn surgery and SU(2)
        Joint with John A. Baldwin, Zhenkun Li, and Steven Sivek
        Geom. Topol. 28(4): 1891–1922, 2024
        arXiv:2110.02874 | PDF

[6] SU(2) representations and a large surgery formula
        Joint with Zhenkun Li
        Submitted | arXiv:2107.11005 | PDF | Talk | Slides

[5] An enhanced Euler characteristic of sutured instanton homology
        Joint with Zhenkun Li
        Int. Math. Res. Not. 2024(4): 2873–2936, 2024
        arXiv:2107.10490 | PDF

[4] Instanton Floer homology, sutures, and Euler characteristics
        Joint with Zhenkun Li
        Quantum Topol. 14(2): 201–284, 2023
        arXiv:2101.05169 | PDF | Talk: Part I, Part II | Slides

[3] Sutured instanton homology and Heegaard diagrams
        Joint with John A. Baldwin and Zhenkun Li
        Compos. Math. 159(9): 1898–1915, 2023
        arXiv:2011.09424 | PDF | Talk by Zhenkun Li

[2] Instanton Floer homology, sutures, and Heegaard diagrams
        Joint with Zhenkun Li
        J. Topol. 15(1): 39–107, 2022
        arXiv:2010.07836 | PDF | Talk by Zhenkun Li

[1] Constrained knots in lens spaces
        Single author
        Algebr. Geom. Topol. 23(3): 1097–1166, 2023
        arXiv:2007.04237 | PDF | List of constrained knots | Data | Talk | Slides | Poster

[0] Ph.D. Thesis: New techniques in calculation of sutured instanton Floer homology
        by Heegaard diagrams, Euler characteristics, and Dehn surgery formulae
        DOI: 10.17863/CAM.85094 | PDF


会议与报告

  • [2026-10] Talk on the undergraduate research program, Slides (in Chinese)
  • [2026-07] Short communication (15 minutes), ICM 2026, Philadelphia
  • [2026-02] Plenary talk, The 21st East Asian Conference on Geometric Topology (EACGT), Seoul



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Floer Homology Lab

© Fan Ye - 2026

Last updated: Oct. 2026

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