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Applied Math Seminar: Johannes Brust (UCSD)

Claremont, CA, United States

Title: PLSS: A Projected Linear Systems Solver (joint work with Michael Saunders) Abstract: Iteratively solving linear systems has proven to be useful for many large applications. Projection methods use sketching matrices (possibly randomized) to generate a sequence of small projected subproblems, but even the smaller systems can be costly. We develop a method in which […]

Applied Math Seminar: Emily de Jong (Caltech)

Claremont, CA, United States

Title: Modeling size distributions and collisions in cloud microphysics Abstract: Feedbacks between a warming atmosphere, emission of aerosols, and clouds and precipitation are one of the most difficult aspects for climate models to accurately capture. While these models operate at resolutions of tens or hundreds of kilometers, many of the physics that determine how and […]

Applied Math Seminar: Michael Murray (UCLA)

Estella 1021 (Emmy Noether Room), Pomona College Claremont, CA, United States

Title: Towards Understanding the Success of First Order Methods in Training Mildly Overparameterized Networks Abstract: For most problems of interest the loss landscape of a neural network is non-convex and contains a plethora of spurious critical points. Despite this first order methods such as SGD and Adam are in practice remarkably successful at finding optimal, […]

Applied Math Seminar: Tin Thien Phan (Los Alamos National Laboratory)

Estella 1021 (Emmy Noether Room), Pomona College Claremont, CA, United States

Title: Understanding SARS-CoV-2 viral rebounds with and without treatments. Abstract: In most instances, the characteristics of SARS-CoV-2 mirror the patterns of an acute infection, with viral load rapidly peaking around 5 days post-infection and subsequently clearing within 2 weeks. However, some individuals show signs of viral recrudescence of up to 10000 viral RNA copies/mL shortly […]

Applied Math Seminar: Dan Pirjol (Stevens Institute of Technology)

Estella 1021 (Emmy Noether Room), Pomona College Claremont, CA, United States

Title: The Hartman-Watson distribution: numerical evaluation and applications in mathematical finance Abstract: The Hartman-Watson distribution appears in several problems of applied probability and financial mathematics. Most notably, it determines the joint distribution of the time-integral of a geometric Brownian motion and its terminal value. A classical result by Yor (1981) expresses it as a one-dimensional […]

Applied Math Seminar: Evan Rosenman (CMC)

Estella 1021 (Emmy Noether Room), Pomona College Claremont, CA, United States

Title:  Recalibration of Predicted Probabilities Using the "Logit Shift": Why Does It Work, and When Can It Be Expected to Work Well? Abstract: In the context of election analysis, researchers frequently face the "recalibration problem." That is: they must reconcile individual-level vote probabilities, modeled prior to the election, with vote totals observed in each precinct […]

Applied Math Seminar: Jeremy Brandman (DCS corporation)

Estella 1021 (Emmy Noether Room), Pomona College Claremont, CA, United States

Title Control algorithms for unmanned underwater vehicles: new approaches based on Hamilton-Jacobi equations and reinforcement learning. Abstract Unmanned underwater vehicles (UUVs) are defined by their ability to operate without direct human intervention.  As a result, UUVs are valuable for surveillance tasks, especially in the presence of hazardous environmental conditions. Specific applications of UUVs include seafloor mapping, […]

Applied Math Seminar: Claremont Colleges Course Previews for Spring 2024

Estella 1021 (Emmy Noether Room), Pomona College Claremont, CA, United States

During this student-centered Applied Math Seminar, there will be discussion and presentations about upcoming courses offered in applied mathematics, to help students make their enrollment choices for Spring 2024 and beyond.

Applied Math Seminar: Adam Yassine (Pomona College)

Estella 1021 (Emmy Noether Room), Pomona College Claremont, CA, United States

Title: On the Composition of Classical Mechanical Systems Abstract: Compositionality is a basic principle for understanding the physical world. The underlying idea is to study a system by studying the ways in which the components of the system compose to form the system. Category theory is an area in mathematics that is particularly well-suited for […]

Applied Math Seminar: Adolfo Rumbos (Pomona College)

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

Title: Existence and multiplicity of solutions for a cooperative elliptic system using Morse theory This is joint work with Leandro Recova (Cal Poly Pomona) Abstract

Dagan Karp (Harvey Mudd College)

Estella 1021 (Emmy Noether Room), Pomona College Claremont, CA, United States

Title: Tropical Linear Series Abstract: In this talk I'll attempt to give a friendly and example-driven introduction to the theory of linear series on tropical curves. While in some respects mirroring the classical study of linear series, in the tropical setting there are many surprises and even basic questions remain open. This work is joint with […]

Cristian Lopez Morales (UNAL)

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

Join us for the first talk in the joint seminar with CCMS Applied Math and the Universidad Nacional de Colombia Title Serre Conjecture. Geometric interpretation of the Quillen-Suslin Theorem. Abstract: The Quillen-Suslin theorem asserts that over the polynomial ring with coefficients in a field K, every projective module is free. Despite the algebraic nature of […]