• Counting points in discrete subgroups (Jeff Vaaler, UT Austin)

    On Zoom

    We consider the problem of comparing the number of discrete points that belong to a set with the measure (or volume) of the set, under circumstances where we expect these two numbers to be approximately equal. We start with a locally compact, abelian, topological group G. We assume that G has a countably infinite, torsion […]

  • Topological descriptions of protein folding (Prof. Helen Wong)

    Zoom

    Title: Topological descriptions of protein folding Speaker:  Prof. Helen Wong, Department of Mathematical Sciences, Claremont-McKenna College. Abstract: Knotting in proteins was once considered exceedingly rare. However, systematic analyses of solved […]

  • Applied Math Seminar — Sara Clifton (St. Olaf College)

    Emmy Noether Room, Estella 1021, Pomona College, 610 N. College Ave., Claremont, CA, United States

    Title: Understanding Complex Social Systems using Minimal Mathematical Models Abstract: Minimal mathematical models are used to understand complex phenomena in the physical, biological, and social sciences. This modeling philosophy never […]

  • The Chow ring of heavy/light Hassett spaces via tropical geometry (Dagan Karp, HMC)

    On Zoom

    Hassett spaces in genus 0 are moduli spaces of weighted pointed stable rational curves; they are important in the minimal model program and enumerative geometry. We compute the Chow ring of heavy/light Hassett spaces. The computation involves intersection theory on the toric variety corresponding to a graphic matroid, and rests upon the work of Cavalieri-Hampe-Markwig-Ranganathan. […]

  • Projections on Banach spaces and a lifting property of operators (Prof. Botelho)

    Zoom

    Title: Projections on Banach spaces and a lifting property of operators Prof. Maria Fernanda Botelho Department of Mathematical Sciences The University Of Memphis Abstract: In this talk I will present properties of contractive projections and explain their role in the existence of norm preserving lifts of operators. A pair of Banach spaces (X, J), with […]

  • Applied Math Seminar — Christopher Miles (UC Irvine)

    Emmy Noether Room, Estella 1021, Pomona College, 610 N. College Ave., Claremont, CA, United States

    Title:  Collective motion in the mitotic spindle Abstract:  Math models of interacting individuals moving as a collective have been profoundly successful in describing physical and social phenomena ranging from swarming insects […]

  • Collective Behavior in Locust Swarms from Data to Differential Equations (Prof. Jasper Weinburd)

    Zoom

    Title: Collective Behavior in Locust Swarms from Data to Differential Equations   Prof. Jasper Weinburd Department of Mathematics Harvey Mudd College   Abstract: Locusts are devastating pests that infest and destroy crops. Locusts forage and migrate in large swarms which exhibit distinctive shapes that improve efficiency on the group level, a phenomenon known as collective […]

  • Thanksgiving Week

    Emmy Noether Room, Millikan 1021, Pomona College 610 N. College Ave., Claremont, California

    No applied math talk

  • Odd subgraphs are odd (Asaf Ferber, UC Irvine)

    On Zoom

    In this talk we discuss some problems related to finding large induced subgraphs of a given graph G which satisfy some degree-constraints (for example, all degrees are odd, or all degrees are j mod k, etc). We survey some classical results, present some interesting and challenging problems, and sketch solutions to some of them. This […]