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  • Categorification of biquandle arrow weight invariants via quivers (Migiwa Sakurai, Shibaura Institute of Technology)

    Estella 2099

    Biquandle arrow weights invariants are enhancements of the biquandle counting invariant for oriented virtual and classical knots defined from biquandle-colored Gauss diagrams using a tensor over an abelian group satisfying certain properties. In this talk, we categorify the biquandle arrow weight polynomial invariant using biquandle coloring quivers, obtaining new infinite families of polynomial invariants of […]

  • The Shooting Method in the Analysis of Two-Point Boundary-Value Problems (Adolfo J. Rumbos, Pomona College)

    Abstract: Two-point boundary-value problems (BVPs) appear frequently in applied mathematics.  When looking for solutions of boundary-value problems for some partial differential equations (PDEs) in mathematical physics, two-point BVPs come up as a result of applying the method of separation of variables, for instance. In the case of linear PDEs, the resulting two-point BVPs fall into […]

  • LA City Council Reform: A Statistical Study of Alternatives (Evan Rosenman & Sarah Cannon, Claremont McKenna College)

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

    Abstract: The 2022 Los Angeles City Council scandal intensified public demand for governance reform, leading to the creation of the Los Angeles Charter Reform Commission. The commission is now considering proposals from civic and academic groups. Major recommendations include: eliminating the automatic election of candidates who win a primary majority, expanding the size of the […]

  • A non-uniformly inner amenable group (Isaac Goldbring, UC Irvine)

    Estella 2099

    An inner amenable group is one in which there is a finitely additive conjugation-invariant probability measure on the non-identity elements.  In this talk, we show that inner amenability is not preserved under elementary equivalence.  As a result, we give the first example of a group that is inner amenable but not uniformly inner amenable.

  • NO CCMS Colloquium this Friday!

    Davidson Lecture Hall, CMC 340 E 9th St, Claremont, CA, United States

    We'll be back next week!

  • Graphical designs: combinatorics and applications (Catherine Babecki, Caltech)

    Estella 2099

    A graphical design is a quadrature rule for a graph inspired by classical numerical integration on the sphere. Broadly speaking, that means a graphical design is a relatively small subset of graph vertices chosen to capture the global behavior of functions from the vertex set to the real numbers. We first motivate and define graphical […]

  • CCMS Colloquium: Robert Cass (CMC)

    Davidson Lecture Hall, CMC 340 E 9th St, Claremont, CA, United States

    CCMS Colloquium invites you to a talk by Assistant Professor of Mathematics Robert Cass of Claremont McKenna College: Title: An introduction to the Langlands program Abstract: Class field theory, which […]

  • Bounds and Extremal Examples for the Hot Spots Ratio (Alex Hsu, University of Washington)

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

    Abstract: The shape of the fluctuations as heat approaches equilibrium in an insulated body are governed by the first Neumann eigenfunction of the Laplacian. Rauch's hot spots conjecture states that the extrema of the first nontrivial Neumann Laplacian eigenfunction for a Lipschitz domain lies on the boundary. While this conjecture is false in general, its […]