BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Claremont Center for the Mathematical Sciences - ECPv6.15.17.1//NONSGML v1.0//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
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
REFRESH-INTERVAL;VALUE=DURATION:PT1H
X-Robots-Tag:noindex
X-PUBLISHED-TTL:PT1H
BEGIN:VTIMEZONE
TZID:America/Los_Angeles
BEGIN:DAYLIGHT
TZOFFSETFROM:-0800
TZOFFSETTO:-0700
TZNAME:PDT
DTSTART:20250309T100000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0700
TZOFFSETTO:-0800
TZNAME:PST
DTSTART:20251102T090000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:-0800
TZOFFSETTO:-0700
TZNAME:PDT
DTSTART:20260308T100000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0700
TZOFFSETTO:-0800
TZNAME:PST
DTSTART:20261101T090000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:-0800
TZOFFSETTO:-0700
TZNAME:PDT
DTSTART:20270314T100000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0700
TZOFFSETTO:-0800
TZNAME:PST
DTSTART:20271107T090000
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260310T123000
DTEND;TZID=America/Los_Angeles:20260310T131000
DTSTAMP:20260403T133301
CREATED:20260119T182717Z
LAST-MODIFIED:20260307T023545Z
UID:3961-1773145800-1773148200@colleges.claremont.edu
SUMMARY:Hecke algebras and motives (Robert Cass\, CMC)
DESCRIPTION:Hecke algebras play a central role in both number theory and representation theory. While some Hecke algebras have explicit descriptions in terms of generators and relations\, others are understood through structure constants that encode multiplicities in tensor products of representations. In this talk\, I will discuss several projects with Thibaud van den Hove and Jakob Scholbach aimed at using geometry and motives to give a uniform categorification of Hecke algebras. Along the way\, we will encounter the geometric Satake equivalence\, Gaitsgory’s central functor\, and Iwahori-Whittaker models.
URL:https://colleges.claremont.edu/ccms/event/antc-talk-robert-cass-cmc-2/
LOCATION:Estella 2099
CATEGORIES:Algebra / Number Theory / Combinatorics Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260313T110000
DTEND;TZID=America/Los_Angeles:20260313T121500
DTSTAMP:20260403T133301
CREATED:20260110T234636Z
LAST-MODIFIED:20260313T054744Z
UID:3951-1773399600-1773404100@colleges.claremont.edu
SUMMARY:NO CCMS Colloquium: Pi Day at CMC
DESCRIPTION:No lecture today. \n  \nQuantitative and Computing Lab (QCL) Math Club Pi Day celebration at Claremont McKenna College at Kravis Lower Court from 11am to 12:30pm. \n 
URL:https://colleges.claremont.edu/ccms/event/ccms-colloquium-2/
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:20260320T110000
DTEND;TZID=America/Los_Angeles:20260320T121500
DTSTAMP:20260403T133301
CREATED:20260110T234749Z
LAST-MODIFIED:20260110T234749Z
UID:3952-1774004400-1774008900@colleges.claremont.edu
SUMMARY:NO CCMS Colloquium - SPRING BREAK
DESCRIPTION:
URL:https://colleges.claremont.edu/ccms/event/no-ccms-colloquium-spring-break/
CATEGORIES:Colloquium
ORGANIZER;CN="Sam Nelson":MAILTO:snelson@cmc.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260323T161500
DTEND;TZID=America/Los_Angeles:20260323T171500
DTSTAMP:20260403T133301
CREATED:20260320T193527Z
LAST-MODIFIED:20260320T193527Z
UID:4056-1774282500-1774286100@colleges.claremont.edu
SUMMARY:A Regularity Criterion for the 3-D Navier-Stokes Equations Based on Finitely Many Observations (Abhishek Balakrishna\, USC)
DESCRIPTION:Abstract: This talk presents a regularity criterion for the three-dimensional Navier–Stokes equations based on finitely many observations of the flow. Motivated by data assimilation\, we study a nudging algorithm that incorporates coarse spatial measurements through general interpolation operators. \nWe show that suitable conditions on the observed data guarantee global regularity of the associated system and yield an exponential tracking property. As a consequence\, we obtain a new regularity criterion for weak solutions formulated entirely in terms of finitely many observables\, covering modal\, volume\, and nodal measurements.
URL:https://colleges.claremont.edu/ccms/event/a-regularity-criterion-for-the-3-d-navier-stokes-equations-based-on-finitely-many-observations-abhishek-balakrishna-usc/
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:20260324T121500
DTEND;TZID=America/Los_Angeles:20260324T131000
DTSTAMP:20260403T133301
CREATED:20260209T235439Z
LAST-MODIFIED:20260226T211019Z
UID:3991-1774354500-1774357800@colleges.claremont.edu
SUMMARY:Computing certificates for complete positivity (Achill Schürmann\, University of Rostock)
DESCRIPTION:A key problem in computer proofs based on solutions from copositive optimization\, is checking whether or not a given quadratic form is completely positive or not. In this talk we describe the first known algorithm for arbitrary rational input. It is based on a suitable adaption of Voronoi’s Algorithm and the underlying theory from positive definite to copositive quadratic forms. We observe several similarities with the classical theory\, but also some differences\, in particular for three and more variables. A key element and currently the main bottleneck in our algorithm is an adapted shortest vector computation\, asking for all nonnegative integer vectors attaining the copositive minimum of a given copositive quadratic form. \n(based on joint work with Valentin Dannenberg\, Alexander Oertel\, Mathieu Dutour Sikiric and Frank Vallentin)
URL:https://colleges.claremont.edu/ccms/event/antc-talk-achill-schurmann-university-of-rostock/
LOCATION:Estella 2099
CATEGORIES:Algebra / Number Theory / Combinatorics Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260324T161500
DTEND;TZID=America/Los_Angeles:20260324T171500
DTSTAMP:20260403T133301
CREATED:20260316T040720Z
LAST-MODIFIED:20260316T040956Z
UID:4048-1774368900-1774372500@colleges.claremont.edu
SUMMARY:Analysis Seminar: Metrics on quantum channels from noncommutative geometry (Tron Omland\, University of Oslo and Norwegian National Security Authority)
DESCRIPTION: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 such metrics and show that\, under suitable assumptions\, they satisfy stability and chaining. I will present the main ideas and explain how spectral triples and related constructions give rise to distances between quantum processes. This is joint work with Austad\, Bedos\, Eidesen\, and Larsen.
URL:https://colleges.claremont.edu/ccms/event/analysis-seminar-metrics-on-quantum-channels-from-noncommutative-geometry-tron-omland-university-of-oslo-and-norwegian-national-security-authority/
LOCATION:Estella 2099\, Pomona College\, 610 N. College Ave.\, Claremont\, CA\, United States
CATEGORIES:Analysis Seminar
ORGANIZER;CN="Asuman Aksoy":MAILTO:asuman.aksoy@claremontmckenna.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260327T110000
DTEND;TZID=America/Los_Angeles:20260327T121500
DTSTAMP:20260403T133301
CREATED:20260110T234844Z
LAST-MODIFIED:20260313T054308Z
UID:3953-1774609200-1774613700@colleges.claremont.edu
SUMMARY:NO CCMS Colloquium - Cesar Chavez Day
DESCRIPTION:
URL:https://colleges.claremont.edu/ccms/event/ccms-colloquium-3/
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:20260330T161500
DTEND;TZID=America/Los_Angeles:20260330T171500
DTSTAMP:20260403T133301
CREATED:20260317T221754Z
LAST-MODIFIED:20260317T221754Z
UID:4051-1774887300-1774890900@colleges.claremont.edu
SUMMARY:The Euler Equations in Function Spaces of Generalized Smoothness (Zachary Radke\, OSU)
DESCRIPTION:Abstract: In this talk\, we will describe a well/ill-posedness result for the 2D incompressible Euler equations. We investigate solutions in a setting logarithmically smoother than previously done\, in a hope to identify the key dynamics leading to a breakdown of regularity in 2D fluid flow. When order of the logarithmic derivative is sufficiently large one obtains global well posedness\, however\, below this threshold\, one can construct initial data for which the corresponding solution blows up instantaneously in the logarithmic Sobolev norm. In this sense\, the result is sharp at this logarithmic scale\, but by no means is the story completed by it so we will discuss ways to dive deeper.
URL:https://colleges.claremont.edu/ccms/event/the-euler-equations-in-function-spaces-of-generalized-smoothness-zachary-radke-osu/
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:20260331T121500
DTEND;TZID=America/Los_Angeles:20260331T131000
DTSTAMP:20260403T133301
CREATED:20260106T162953Z
LAST-MODIFIED:20260321T145212Z
UID:3941-1774959300-1774962600@colleges.claremont.edu
SUMMARY:Central moments of autocorrelation demerit factors of binary sequences (Daniel Katz\, CSUN)
DESCRIPTION: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\, called the merit factor\, was introduced by Golay.  Its reciprocal is the demerit factor\, which is more natural to analyze due to its connection with norms of polynomials on the complex unit circle.  We consider the uniform probability measure on the $2^\ell$ binary sequences of length $\ell$ and investigate the distribution of the demerit factors of these sequences.  Sarwate and Jedwab have respectively calculated the mean and variance of this distribution. For each positive integer $p$\, we derive a formula for the $p$th central moment of the demerit factor for the binary sequences of length $\ell$; this is $\ell^{-2 p}$ times a quasipolynomial function of $\ell$.  The derivations rely on new combinatorial techniques\, assisted by group theory and Ehrhart theory\, and show that all the central moments are strictly positive for $p\geq 2$ and $\ell \geq 4$. Jedwab’s formula for variance is confirmed\, and we go beyond previous results by also deriving an exact formula for the skewness (by hand) and for the kurtosis and the fifth moment (by computer).  We obtain asymptotic values for all central moments in the limit as the length $\ell$ of the sequences tends to infinity.
URL:https://colleges.claremont.edu/ccms/event/antc-seminar-daniel-katz-csun/
LOCATION:Estella 2099
CATEGORIES:Algebra / Number Theory / Combinatorics Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260402T161500
DTEND;TZID=America/Los_Angeles:20260402T171500
DTSTAMP:20260403T133301
CREATED:20260327T214850Z
LAST-MODIFIED:20260327T214850Z
UID:4063-1775146500-1775150100@colleges.claremont.edu
SUMMARY:Analysis Seminar: Restricted isometries and operator norms on finite-dimensional $L^p$-spaces (Alonso Delfín Ares de Parga\, CU Boulder)
DESCRIPTION: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. \nIn this talk\, I will present a generalization of this result to restricted isometries\, which are linear maps that preserve the norm only on a fixed subset of coordinates. I will discuss how this generalization could be used in the computation of certain $p$-operator norms\, a problem that is known to be NP-hard in general. \nThis talk includes joint work carried out as part of two REU projects in 2024 and 2025.
URL:https://colleges.claremont.edu/ccms/event/analysis-seminar-restricted-isometries-and-operator-norms-on-finite-dimensional-lp-spaces-alonso-delfin-ares-de-parga-cu-boulder/
LOCATION:Estella 2099\, Pomona College\, 610 N. College Ave.\, Claremont\, CA\, United States
CATEGORIES:Analysis Seminar
ORGANIZER;CN="Asuman Aksoy":MAILTO:asuman.aksoy@claremontmckenna.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260403T110000
DTEND;TZID=America/Los_Angeles:20260403T121500
DTSTAMP:20260403T133301
CREATED:20260110T220851Z
LAST-MODIFIED:20260303T022823Z
UID:3949-1775214000-1775218500@colleges.claremont.edu
SUMMARY:CCMS Colloquium: Puttipong Pongtanapaisan (Pitzer)
DESCRIPTION:CCMS Colloquium invites you to a talk by Puttipong Pongtanapaisan (Pitzer)\n\n \nTitle:  Derivatives and the Shape of Graphs\n \nAbstract:  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 about geometry and topology\, and the root idea already appears in Calculus I. In real life\, shapes such as proteins and DNA can be tangled up in space. These can be modeled as graphs embedded in three-dimensional space\, and some applied mathematicians also call these networks. In calculus\, you learn that information about derivatives\, such as the number of local maxima and where they appear\, tells us a great deal about the graph itself. I am going to apply this same philosophy to knotted graphs in three-dimensional space and demonstrate that one protein is more complexly entangled than another.\n \nBio: Puttipong Pongtanapaisan obtained his Ph.D. at the University of Iowa\, where he studied low-dimensional topology under the supervision of Dr. Maggy Tomova. His previous positions include a PIMS Postdoctoral Fellow at the University of Saskatchewan and a Postdoctoral Associate at Arizona State University. His research explores knotted shapes in confinement by analyzing the arrangement of local maxima and minima.
URL:https://colleges.claremont.edu/ccms/event/ccms-colloquium-puttipong-pongtanapaisan-pitzer/
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:20260404T100000
DTEND;TZID=America/Los_Angeles:20260404T115500
DTSTAMP:20260403T133301
CREATED:20260312T200921Z
LAST-MODIFIED:20260312T200921Z
UID:4035-1775296800-1775303700@colleges.claremont.edu
SUMMARY:GEMS April 4th Session
DESCRIPTION:This GEMS session will be facilitated by Evan Rosenman from Claremont McKenna College \n\n\n\nTitle: Fair Votes? The Mathematics of Elections and Redistricting\n\n\nAbstract: 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 district boundaries can change outcomes. They will also learn about alternative voting systems\, such as ranked choice voting and approval voting\, and how these might yield more representative outcomes than traditional “first-past-the-post” elections. Along the way\, we’ll encounter ideas like Condorcet winners\, and see how Statistics can help us learn about voting patterns from limited data. Join us to discover how geometry\, algorithms\, and probability shape modern elections.
URL:https://colleges.claremont.edu/ccms/event/gems-april-4th-session/
LOCATION:Shanahan 1480\, Harvey Mudd College\, 301 Platt Blvd.\, Claremont\, CA\, 91711\, United States
CATEGORIES:GEMS
ORGANIZER;CN="Teal Witter":MAILTO:raylen.witter@claremontmckenna.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260407T121500
DTEND;TZID=America/Los_Angeles:20260407T131000
DTSTAMP:20260403T133301
CREATED:20260120T211724Z
LAST-MODIFIED:20260331T041748Z
UID:3963-1775564100-1775567400@colleges.claremont.edu
SUMMARY:Tropical linear series and matroids (Dagan Karp\, HMC)
DESCRIPTION: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 Jenna Luo. 
URL:https://colleges.claremont.edu/ccms/event/antc-talk-dagan-karp-hmc-2/
LOCATION:Estella 2099
CATEGORIES:Algebra / Number Theory / Combinatorics Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260410T110000
DTEND;TZID=America/Los_Angeles:20260410T121500
DTSTAMP:20260403T133301
CREATED:20260110T235056Z
LAST-MODIFIED:20260303T022941Z
UID:3955-1775818800-1775823300@colleges.claremont.edu
SUMMARY:CCMS Colloquium: Course Preview
DESCRIPTION:
URL:https://colleges.claremont.edu/ccms/event/ccms-colloquium-5/
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:20260411T100000
DTEND;TZID=America/Los_Angeles:20260411T153000
DTSTAMP:20260403T133301
CREATED:20260310T035504Z
LAST-MODIFIED:20260323T045802Z
UID:4031-1775901600-1775921400@colleges.claremont.edu
SUMMARY:The alchemy of mixing mathematics:  The second annual CCMS workshop in the history and philosophy of mathematics
DESCRIPTION:This one-day workshop assembles diverse perspectives from the history and philosophy of mathematics to examine ways in which mathematics interacts and expands across other fields of study. \nPlease RSVP here by Monday\, April 6th to attend the workshop and lunch. \n\nSchedule \n10:00 to 10:05 Welcome! \n10:05 to 11:05 Otávio Bueno (University of Miami & Tohoku University)\, “Why there are no styles of mathematical reasoning” \n11:10 to 12:10 E. L. Meszaros (Brown University)\, “Algorithmic translations and interpretations of late Babylonian mathematics” \n12:10 to 1:20 Lunch \n1:25 to 2:25 Jed Buchwald (CalTech)\, “The winding trail to Newton’s Principia” \n2:30 to 3:30 Mate Szabo (University of Southern California)\, “Turing’s machines and Max Newman’s symbolic machinery for mathematical physics” \n\nAbstracts \n\nOtávio Bueno (University of Miami & Tohoku University)\, “Why there are no styles of mathematical reasoning” \nThe notion of style of scientific reasoning has been used as an analytical tool for the characterization of significant features of scientific practice (in particular\, by Crombie [1994]\, Hacking [2002]\, and Granger [1988]). Styles of scientific reasoning are different from scientific theories in a given domain of inquiry: styles are broader than theories\, and they are not so dependent on features of the particular domain. In this work\, I have two main goals. I’ll first provide a characterization of the concept of style of reasoning that overcomes some difficulties that have been raised against this tool (by Bolduc [2014]). I’ll then argue that\, despite the broad conception of style I defend\, there is no suitable way of formulating a notion of style of mathematical reasoning. Mathematics\, I’ll argue\, is too malleable\, and attempts at characterizing a notion of style in geometry\, analysis\, algebra or set theory end up yielding just more mathematical theories particular to these domains. Mathematical practice is significantly different from scientific practice in this respect. \nE. L. Meszaros (Brown University)\, “Algorithmic translations and interpretations of late Babylonian mathematics” \nInitial investigations into Babylonian mathematics as “algorithms” began\, intuitively\, by interrogating the large corpus of Old Babylonian mathematical texts. Donald Knuth viewed these prose maths problems as examples of algorithms\, though many scholars of Babylonian cultures and languages disagreed with this characterization. However\, recent studies have demonstrated the value of looking for algorithms among other corpora\, particularly astronomical texts. While astronomical procedures demonstrated more algorithmic characteristics\, they also highlighted uniquely Babylonian tendencies. Whether these texts can be truly considered “algorithmic” becomes less important than whether the algorithmic lens as a tool of analysis can shed light on new aspects of the science and mathematics contained within the tablets. This talk examines the application of the term “algorithm” to less frequently considered Late Babylonian mathematics. While this corpus remains small\, the few examples that have been recovered show characteristic differences from their Old Babylonian counterparts\, making it valuable to reconsider the application of the term algorithm and the algorithmic lens of investigation. Beginning with an introduction to the corpus and what makes it different from earlier mathematical texts\, this talk then makes the case for viewing these later texts algorithmically. Comparisons to Babylonian algorithmic forms and cultures\, particularly arising from the astronomical sciences\, will be made and evaluated for use within the field. \nJed Buchwald (CalTech)\, “The winding trail to Newton’s Principia“ \n\nThroughout the years between his first engagement with mathematics under Isaac Barrow and the production of the manuscript that evolved into Book I of the Principia\, Newton was only sporadically engaged by issues of motion\, whether earthly or astronomical. His first concerted interest involved collisions\, which he modeled on the material circumstances of a springlike mechanism. In doing so\, and in a subsequent turn to circular motion\, the young Newton presumed without comment what would later be formalized as the Principia‘s three laws of motion. He was hardly the only one\, at least in England\, to make such presumptions. We will discuss this early work in order to unpack what transpired when\, in 1679\, Newton responded to a letter from Robert Hooke\, his former critic in optics. We’ll then consider what in consequence took place following the famous visit to Newton by Edmond Halley in 1684. If time allows\, we’ll conclude with a brief examination of the interesting reaction of the mathematician John Wallis to Newton’s manuscript account of fall under resistance\, sent to Wallis for comment by Halley two years before the Principia. In so doing we will see that the fundamental key to the novelty of Newton’s work at that time consisted in the specific manner according to which he discretized motion change. \nMate Szabo (University of Southern California)\, “Turing’s machines and Max Newman’s symbolic machinery for mathematical physics” \nWhile Turing’s “On Computable Numbers…” from 1936 and its impact is well studied\, much less is known about Turing’s early influences. The aim of this talk is to show how Max Newman\, who taught Turing in Cambridge and was later his boss in Bletchley Park and at the University of Manchester\, influenced his early work. Indeed\, Turing’s interest in the “Entscheidungsproblem” stemmed from Newman’s lectures on the foundations of mathematics he attended in 1935. While Newman is known as a combinatorial topologist\, he was the first to teach a modern\, Hilbert style mathematical logic course in the UK. In addition\, he frequently engaged with the Cambridge philosophers during the 1920s and 1930s. His interest in scientific philosophies most likely stems from his visit to Vienna during the 1922/1923 academic year\, where he came in touch with members of the famous Vienna Circle. Indeed\, his unpublished dissertation\, The Foundations of Mathematics from the Standpoint of Physics (1923)\, shows strong influences of the Vienna Circle. Newman’s aim in the dissertation is to build up mathematical physics as a “symbolic machinery” for manipulating “a body of ‘logical axioms’ and a set of ‘physical assumptions’”. This leads to the parallel development of an ‘epistemic logic’ to deal with ‘beliefs’ and ‘judgements about sensations’ on the physical side\, and the description of logic as acts\, performances and processes of symbol manipulation. After a careful look at the dissertation I will bring out the surprisingly strong resemblances (as well as the important differences) between Newman’s treatment of mathematical activities and Turing’s analysis of the human “computor”.
URL:https://colleges.claremont.edu/ccms/event/the-alchemy-of-mixing-mathematics-the-second-annual-ccms-workshop-in-the-history-and-philosophy-of-mathematics/
LOCATION:Argue Auditorium\, Pomona College\, 610 N. College Ave.\, Claremont\, CA\, 91711\, United States
CATEGORIES:History and Philosophy of Mathematics Seminar
GEO:34.0999157;-117.7142668
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=Argue Auditorium Pomona College 610 N. College Ave. Claremont CA 91711 United States;X-APPLE-RADIUS=500;X-TITLE=610 N. College Ave.:geo:-117.7142668,34.0999157
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260413T161500
DTEND;TZID=America/Los_Angeles:20260413T171500
DTSTAMP:20260403T133301
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:20260403T133301
CREATED:20260123T051413Z
LAST-MODIFIED:20260131T213058Z
UID:3971-1776168900-1776172200@colleges.claremont.edu
SUMMARY:ANTC talk -- John Yoonseok Chae
DESCRIPTION:
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:20260403T133301
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:20260421T121500
DTEND;TZID=America/Los_Angeles:20260421T131000
DTSTAMP:20260403T133301
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:20260403T133301
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:20260403T133301
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:20260403T133301
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:20260403T133301
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
END:VEVENT
END:VCALENDAR