TGTS Tetrahedral Geometry/Topology Seminar
Sponsored by Elizabethtown College, Franklin and Marshall College,
Lebanon Valley College, Millersville University, and West Chester University
Tentative Dates 2025-2026
12 Sep 2025:
3 Oct 2025:
14 Nov 2025:
6 Feb 2026:
6 Mar 2026:
10 Apr 2026:
TGTS is a regional mathematics seminar/colloquium, broadly based on the
disciplines of geometry and topology. The public is cordially invited to
attend.
Next Talk
Date/Time: 12 September 2025, 4:30pm ET
Location: West Chester University. Building 25, University Ave, West Chester, PA 19383. Room 161
Parking: Meter parking is available at the department. Free parking is available in any commuter lot after 4pm map here
Zoom: link here
Speaker: Sam Taylor, Temple University
Title: Endperiodic maps via pseudo-Anosov flows
Abstract: A homeomorphism of a closed surface that preserves no
essential curves up to homotopy is homotopic to a pseudo-Anosov
homeomorphism. These are maps with very rigid dynamical structure and
their studying interacts with many areas of geometric topology. In this
talk, I’ll introduce a generalization of this theory to endperiodic
homeomorphisms of infinite-type surfaces, discuss their dynamical
properties, and explain how they arise from the study of certain flows
on 3-manifolds. This is joint work with Michael Landry and Yair Minsky.
Past Seminars
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