3 papers
math.GT2025
Heegaard Floer theory and pseudo-Anosov flows II: Differential and Fried pants
Antonio Alfieri, Chi Cheuk Tsang
In earlier work, relying on work of Agol-Guéritaud and Landry-Minsky-Taylor, we showed that given a pseudo-Anosov flow and a collection of closed orbits satis…
math.DS2024
Examples of Anosov flows with genus one Birkhoff sections
Chi Cheuk Tsang
We show that a transitive Anosov flow with orientable stable and unstable foliations that either (i) admits a Birkhoff section whose first return map is a Penner type pseudo-Anosov…
math.DS2024
Horizontal Goodman surgery and almost equivalence of pseudo-Anosov flows
Chi Cheuk Tsang
We provide an exposition of a `horizontal' generalization of Goodman's surgery operation on (pseudo-)Anosov flows. This operation is performed by cutting along a specific kind of a…