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  • Analysis Seminar: Metrics on quantum channels from noncommutative geometry (Tron Omland, University of Oslo and Norwegian National Security Authority)

    Estella 2099, Pomona College 610 N. College Ave., Claremont, CA, United States

    Abstract: We study metrics on completely positive maps, and in particular on quantum channels, induced by seminorms from noncommutative geometry. Using an infinite-dimensional analogue of the Choi–Jamiołkowski correspondence, we construct […]

  • Central moments of autocorrelation demerit factors of binary sequences (Daniel Katz, CSUN)

    Estella 2099

    A low autocorrelation binary sequence of length $\ell$ is an $\ell$-tuple of $+1$s and $-1$s that does not strongly resemble any translate of itself.  Such sequences are used in communications and remote sensing for synchronization and ranging, where translation represents time delay.  A single number that indicates how good a sequence is for such purposes, […]

  • Analysis Seminar: Restricted isometries and operator norms on finite-dimensional $L^p$-spaces (Alonso Delfín Ares de Parga, CU Boulder)

    Estella 2099, Pomona College 610 N. College Ave., Claremont, CA, United States

    Abstract: An isometry between two normed vector spaces is a linear map that preserves the norm (i.e., the length of each output agrees with the length of its input). For the classical $p$-norms, isometries have a very concrete description when $p\neq 2$: they are given by signed permutations of the coordinates. In this talk, I […]

  • CCMS Colloquium: Puttipong Pongtanapaisan (Pitzer)

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

    CCMS Colloquium invites you to a talk by Puttipong Pongtanapaisan (Pitzer) Title:  Derivatives and the Shape of Graphs Abstract:  Reading the title of this talk, perhaps you think you are going to hear about Calculus I. I stole the title from a section of Stewart’s popular calculus book. But actually, I am going to talk […]

  • GEMS April 4th Session

    Shanahan 1480, Harvey Mudd College 301 Platt Blvd., Claremont, CA, United States

    This GEMS session will be facilitated by Evan Rosenman from Claremont McKenna College Title: Fair Votes? The Mathematics of Elections and Redistricting Abstract: How do we know if an election is fair? In this interactive session, we’ll explore how math helps us answer that question. Students will experiment with drawing voting districts to see how drawing different […]

  • Tropical linear series and matroids (Dagan Karp, HMC)

    Estella 2099

    In this talk, I'll attempt to give a friendly introduction to tropical linear series and explore their relationship to matroid theory. Along the way, we'll stop to admire the beautiful view from enumerative geometry and combinatorics. This is joint work with Chih-Wei Chang, Matthew Dupraz, Hernan Iriarte, David Jensen, Sam Payne, and Jidong Wang, and also with […]

  • CCMS Colloquium: Course Preview

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

    Please join us for the course preview of all the math courses for Fall 2026. Join us to hear from faculty about the exciting math courses being offered this upcoming fall. It's a great opportunity to learn more, ask questions, and plan your schedule! Please see the presentation below. https://docs.google.com/presentation/d/1zpXAPZv34v3CWK3Ic-aGedRaJRIEt2BywVJJ4LlJnp0/edit?usp=sharing