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  1. Fundamental Group -- the Intertwine of Arithmetic and Geometry

    https://www.math.cuhk.edu.hk/seminars/fundamental-group-intertwine-arithmetic-and-geometry
    ... geometry. I will start by recalling the fundamental group of a topological space and the Galois group of a field. Then I will explain a striking analogy between these two ...

  2. Top group of knot Floer homology and Murasugi sum

    https://www.math.cuhk.edu.hk/seminars/top-group-knot-floer-homology-and-murasugi-sum
    ... that a link is fibered if and only if the rank of the top group of knot Floer homology is one. It is well-known that fiberedness is ... Murasugi sum operation, so we study the behavior of the top group under Murasugi sum. In this talk, we discuss the development of the study ...

  5. On the torsion generating set of the mapping class group

    https://www.math.cuhk.edu.hk/seminars/torsion-generating-set-mapping-class-group
    Date:  Wednesday, 28 June, 2017 - 14:00 - 15:00 Venue:  LSB 222 Seminar Type:  Seminar Speaker Name:  Prof. Xiaoming DU Affiliation:  South China University of Technology ...

  7. Representations of the Nori fundamental group and variants

    https://www.math.cuhk.edu.hk/seminars/representations-nori-fundamental-group-and-variants
    Date:  Monday, 28 October, 2019 - 11:15 - 12:15 Venue:  LSB 222 Seminar Type:  Seminar Speaker Name:  Dr. Fabio TONINI Affiliation:  Universitá degli Studi di Firenze ...