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X-WR-CALNAME:Claremont Center for the Mathematical Sciences
X-ORIGINAL-URL:https://colleges.claremont.edu/ccms
X-WR-CALDESC:Events for Claremont Center for the Mathematical Sciences
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DTSTART;TZID=America/Los_Angeles:20260413T161500
DTEND;TZID=America/Los_Angeles:20260413T171500
DTSTAMP:20260412T101644
CREATED:20260320T224421Z
LAST-MODIFIED:20260320T224421Z
UID:4058-1776096900-1776100500@colleges.claremont.edu
SUMMARY:Extremal Eigenvalues of Weighted Steklov Problems (Chiu-Yen Kao\, CMC)
DESCRIPTION:Abstract: We study the optimization of Steklov eigenvalues with respect to a boundary density function ρ on a bounded Lipschitz domain. We investigate the minimization and maximization of a Steklov eigenvalue over admissible densities satisfying pointwise bounds and a fixed integral constraint. We establish the existence of optimal solutions and provide structural characterizations: minimizers are bang-bang functions and may have disconnected support\, while maximizers are not necessarily bang-bang. On circular domains\, the minimization problem admits infinitely many minimizers generated by rotational symmetry\, while the maximization problem has infinitely many distinct maximizers that are not symmetry-induced. We also show that an eigenvalue is generally neither convex nor concave with respect to the density function\, limiting the use of classical convex optimization tools. To address these challenges\, we analyze the objective functional and introduce a Fréchet differentiable surrogate that enables the derivation of optimality conditions. We further design an efficient numerical algorithm\, with experiments illustrating the difficulty of recovering optimal densities when they lack smoothness or exhibit oscillations.
URL:https://colleges.claremont.edu/ccms/event/extremal-eigenvalues-of-weighted-steklov-problems-chiu-yen-kao-cmc/
LOCATION:Emmy Noether Room\, Estella 1021\, Pomona College\,\, 610 N. College Ave.\, Claremont\, CA\, 91711\, United States
CATEGORIES:Applied Math Seminar
ORGANIZER;CN="Ryan Aschoff":MAILTO:ryan.aschoff@cgu.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260414T121500
DTEND;TZID=America/Los_Angeles:20260414T131000
DTSTAMP:20260412T101644
CREATED:20260123T051413Z
LAST-MODIFIED:20260407T032128Z
UID:3971-1776168900-1776172200@colleges.claremont.edu
SUMMARY:Knot complements\, series invariants and Lie superalgebra (John Yoonseok Chae)
DESCRIPTION:Inspired by the categorification program for a numerical invariant of three-manifolds\, series invariants for closed manifolds and for knot complements were introduced. This in turn motivated an extension of the series invariant of the former case to Lie superalgebras. It was recently generalized to knot complements. In this talk\, we review the original series invariants and introduce the recent generalization and explore its properties and examples.
URL:https://colleges.claremont.edu/ccms/event/antc-talk-helen-wong-cmc/
LOCATION:Estella 2099
CATEGORIES:Algebra / Number Theory / Combinatorics Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260417T110000
DTEND;TZID=America/Los_Angeles:20260417T121500
DTSTAMP:20260412T101644
CREATED:20260110T235143Z
LAST-MODIFIED:20260303T023223Z
UID:3956-1776423600-1776428100@colleges.claremont.edu
SUMMARY:CCMS Colloquium: Ryan Moruzzi (CSU Northridge)
DESCRIPTION:
URL:https://colleges.claremont.edu/ccms/event/ccms-colloquium-6/
LOCATION:Davidson Lecture Hall\, CMC\, 340 E 9th St\, Claremont\, CA\, 91711\, United States
CATEGORIES:Colloquium
ORGANIZER;CN="Sam Nelson":MAILTO:snelson@cmc.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260420T161500
DTEND;TZID=America/Los_Angeles:20260420T171500
DTSTAMP:20260412T101644
CREATED:20260408T061621Z
LAST-MODIFIED:20260408T061621Z
UID:4067-1776701700-1776705300@colleges.claremont.edu
SUMMARY:The Secret Life of Turbulent Fluids (Vincent Martinez\, Caltech)
DESCRIPTION:Abstract: Turbulence influences our lives in a multitude of ways\, ranging from the mundane (when we stir milk into our coffee) to the spectacular (the formation of galaxies). It is a great achievement of the human intellect that we are able to locate fundamental mechanisms shared by phenomenon with such a dramatic difference in scale and subsequently study them abstractly through mathematics. This talk will present some of the ways for how fluids and turbulent motion can be studied mathematically and introduce a few interesting problems\, both theoretical and practical\, of ongoing scientific relevance.
URL:https://colleges.claremont.edu/ccms/event/the-secret-life-of-turbulent-fluids-vincent-martinez-caltech/
LOCATION:Emmy Noether Room\, Estella 1021\, Pomona College\,\, 610 N. College Ave.\, Claremont\, CA\, 91711\, United States
CATEGORIES:Applied Math Seminar
ORGANIZER;CN="Ryan Aschoff":MAILTO:ryan.aschoff@cgu.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260421T121500
DTEND;TZID=America/Los_Angeles:20260421T131000
DTSTAMP:20260412T101644
CREATED:20260123T053557Z
LAST-MODIFIED:20260209T235048Z
UID:3972-1776773700-1776777000@colleges.claremont.edu
SUMMARY:ANTC talk -- Sehun Jeong (CMC)
DESCRIPTION:
URL:https://colleges.claremont.edu/ccms/event/antc-talk-sehun-jeong-cmc/
LOCATION:Estella 2099
CATEGORIES:Algebra / Number Theory / Combinatorics Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260424T110000
DTEND;TZID=America/Los_Angeles:20260424T121500
DTSTAMP:20260412T101644
CREATED:20260110T235232Z
LAST-MODIFIED:20260303T023400Z
UID:3957-1777028400-1777032900@colleges.claremont.edu
SUMMARY:CCMS Colloquium: Manuel Reyes (UCI)
DESCRIPTION:
URL:https://colleges.claremont.edu/ccms/event/ccms-colloquium-7/
LOCATION:Davidson Lecture Hall\, CMC\, 340 E 9th St\, Claremont\, CA\, 91711\, United States
CATEGORIES:Colloquium
ORGANIZER;CN="Sam Nelson":MAILTO:snelson@cmc.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260428T121500
DTEND;TZID=America/Los_Angeles:20260428T131000
DTSTAMP:20260412T101644
CREATED:20260123T011543Z
LAST-MODIFIED:20260123T011543Z
UID:3970-1777378500-1777381800@colleges.claremont.edu
SUMMARY:ANTC talk -- Tom Gannon (UCR)
DESCRIPTION:
URL:https://colleges.claremont.edu/ccms/event/antc-talk-tom-gannon-ucr/
LOCATION:Estella 2099
CATEGORIES:Algebra / Number Theory / Combinatorics Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260501T110000
DTEND;TZID=America/Los_Angeles:20260501T121500
DTSTAMP:20260412T101644
CREATED:20260110T235319Z
LAST-MODIFIED:20260303T023528Z
UID:3958-1777633200-1777637700@colleges.claremont.edu
SUMMARY:CCMS Colloquium: Andy Fiss
DESCRIPTION:
URL:https://colleges.claremont.edu/ccms/event/ccms-colloquium-8/
LOCATION:Davidson Lecture Hall\, CMC\, 340 E 9th St\, Claremont\, CA\, 91711\, United States
CATEGORIES:Colloquium
ORGANIZER;CN="Sam Nelson":MAILTO:snelson@cmc.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260505T121500
DTEND;TZID=America/Los_Angeles:20260505T131000
DTSTAMP:20260412T101644
CREATED:20260119T224840Z
LAST-MODIFIED:20260209T235152Z
UID:3962-1777983300-1777986600@colleges.claremont.edu
SUMMARY:ANTC talk -- Michael Orrison (HMC)
DESCRIPTION:
URL:https://colleges.claremont.edu/ccms/event/antc-talk-michael-orrison-hmc/
LOCATION:Estella 2099
CATEGORIES:Algebra / Number Theory / Combinatorics Seminar
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