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  • 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 […]

  • A tribute to Professor Ellis Cumberbatch (1934-2021)

    Zoom

    Title: A tribute to Professor Ellis Cumberbatch (1934-2021) Abstract: The math colloquium on December 1st will be devoted to remembrances of our beloved CGU colleague Professor Ellis Cumberbatch, a pillar of the Claremont mathematics community, who passed away in September. Three brief talks by his friends and collaborators, Professor John Ockendon (University of Oxford), Dr. […]

  • Difference sets in higher dimensions (David Conlon, Cal Tech)

    On Zoom

    Let d >= 2 be a natural number. We determine the minimum possible size of the difference set A-A in terms of |A| for any sufficiently large finite subset A of R^d that is not contained in a translate of a hyperplane. By a construction of Stanchescu, this is best possible and thus resolves an […]

  • Where do Putnam problems come from? (Prof. Andrew Bernoff)

    Title: Where do Putnam problems come from? Speaker: Andrew Bernoff, Department of Mathematics, Harvey Mudd College Abstract: The William Lowell Putnam Exam is the preeminent mathematics competition for undergraduate college students in the United States and Canada. I recently finished a three year stint on the competition’s problem committee. This talk is a personal reflection on […]

  • Questions on Symmetric Chains (Shahriar Shahriari, Pomona)

    On Zoom

    The set of subsets {1, 3}, {1, 3, 4}, {1, 3, 4, 6} is a symmetric chain in the partially ordered set (poset) of subsets of {1,...,6}. It is a chain, because each of the subsets is a subset of the next one. It is symmetric because the collection has as many subsets with less […]

  • Using Stitching for faster sampling (Prof. Mark Huber)

    Title: Using Stitching for faster sampling Speaker: Mark Huber, Department of Mathematics, Claremont McKenna College Abstract: Point processes are used to model location data, such as the locations of trees in a forest, […]

  • APPLIED MATH SEMINAR: Archetypal analysis by Professor Braxton Osting (University of Utah)

    Archetypal analysis is an unsupervised learning method that uses a convex polytope to summarize multivariate data. For fixed k, the method finds a convex polytope with k vertices, called archetype points, such that the polytope is contained in the convex hull of the data and the mean squared distance between the data and the polytope […]

  • Exploiting metric structure for more accurate classification (Prof. Mike Izbicki)

    Zoom meeting , United States

    Title: Exploiting metric structure for more accurate classification Speaker: Mike Izbicki, Department of Mathematical Sciences, Claremont McKenna College Abstract: Classification problems often have many semantically similar classes.  For example, the famous ImageNet dataset […]

  • Applied Math Seminar — Yunied Puig de Dios (CMC)

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

    Title: Modern techniques to approach the invariant subspace problem Abstract:  The invariant subspace problem is by far one of the most important problems in operator theory. It has been open for more than half a century, and there are many significant contributions with a huge variety of techniques, making this challenging problem so interesting; however […]