Home /  Computation in geometric topology: More pseudo-Anosov flows with more triangulations

Seminar

Computation in geometric topology: More pseudo-Anosov flows with more triangulations April 17, 2026 (11:00 AM PDT - 12:00 PM PDT)
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Location: SLMath: Baker Board Room
Speaker(s) Layne Hall (University of Warwick)
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Veering triangulations give us a practical way to find and study pseudo-Anosov flows computationally. However, given a manifold, finding a veering triangulation is difficult for many reasons: the triangulations are rigid and can be non-minimal, and the corresponding flows need to be "nice" (no perfect fits, transitive). I will explain how to instead use more flexible triangulations to capture more pseudo-Anosov flows. We use this to find many explicit examples, and then tackle a natural question: when we find a flow, does it have a veering triangulation?

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