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seminars:topsem

Geometry and Topology Seminar

We meet Thursdays at 2:50–3:50 pm in WH-100E followed by refreshments served from 4:00–4:25 pm in WH-102. This semester's organizer is Jonathan Williams.

Some seminar speakers will also give a colloquium talk at 4:30 pm on the same day as the seminar talk. This seminar is partly funded as one of Dean's Speaker Series in Harpur College (College of Arts and Sciences) at Binghamton University.

The seminar has an announcement mailing list open to all. There is also a Google calendar with the seminar schedule (also in iCal).

Spring 2019

  • April 25
    Speaker: Hyunki Min (Georgia Tech)
    Title: Contact structures on hyperbolic manifolds

    Abstract: There are two basic questions in contact topology: Which manifolds admit tight contact structures, and on those that do, can we classify tight contact structures? There have been a lot of studies for many prime manifolds, especially for Seifert fibrations and toroidal manifolds. In this talk, we present such a classification on an infinite family of hyperbolic 3-manifolds. This is a joint work with James Conway.

  • May 2
    Speaker: Kate Ponto (Institution)
    Title: TBA

    Abstract: TBA

  • May 9
    Speaker: Jacob Russell-Madonia (CUNY)
    Title: The geometry of subgroup combination theorems

    Abstract: While producing subgroups of a group by specifying generators is easy, understanding the structure of such a subgroup is notoriously difficult problem. In the case of hyperbolic groups, Gitik utilized a local to global property for geodesics to produce an elegant condition which ensures a subgroup generated by two elements (or more generally generated by two subgroups) will split as an amalgamated free product over the intersection of the generators. We show that a large class of groups demonstrate a similar local to global property from which an analogy of Gitik's result can be obtained. This allows for a generalization of Gitik's theorem in many important classes of groups including CAT(0) groups, the mapping class groups of a surface, and 3-manifold groups. Joint work with Davide Spriano and Hung C. Tran.

seminars/topsem.txt · Last modified: 2019/04/22 14:43 by sapir