David Fisac - Personal Site

Research

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Interests

My research is on surfaces, from all Riemannian, combinatorial, and hyperbolic points of view. More specifically, growth invariants as the volume entropy, curve counting problems, rigidity of their spectra, and how Teichmüller theory provides a bridge between all these perspectives.

(Pre)Publications

[4].   Isospectrality for infinite-type hyperbolic surfaces with discrete length spectrum,
    with Federica Fanoni, submitted,
    e-print: arXiv:2602.19670.

[3].   Single self-intersection words on the once-punctured torus and their counting,
    with Mingkun Liu, submitted,
    e-print: arXiv:2404.09372.

[2].   A Basmajian-type inequality for Riemannian surfaces,
    with Florent Balacheff, Journal of Topology and Analysis 18 (04): 1199-1212 (2026),
    e-print: arXiv:2311.03182.

[1].   Markov’s Conjecture on integral necklaces,
    Bulletin of the London Mathematical Society, 57 (12): 4122-4131 (2025),
    e-print: arXiv:2501.15550.

Organisation

Curves, Hyperbolicity, And Teichmüller Spaces (CHATS),
   organised with Yusen Long, a workshop on low-dimensional geometric topology, June 2026 at UPEC.

Invited Talks


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