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DTSTART;TZID=America/Los_Angeles:20230912T150000
DTEND;TZID=America/Los_Angeles:20230912T160000
DTSTAMP:20231006T053002Z
CREATED:20230913T073733Z
LAST-MODIFIED:20231006T053002Z
UID:3222-1694530800-1694534400@colleges.claremont.edu
SUMMARY:Claremont Topology Seminar: Robert Bowden (HMC)
DESCRIPTION:Title: Chebyshev Threadings in Skein Algebras for Punctured Surfaces \nAbstract: Skein algebras are algebras of links in a surface quotiented by diagram-based equivalence relations based on the Kauffman bracket. In the case of surfaces with punctures\, the skein algebra is generated by links as well as arcs between the punctures\, and there are additional skein relations for the arcs. We examine the algebraic structure of the punctured case\, finding a description of the central elements at certain roots of unity. Our construction is closely related to the one for the usual skein algebra\, where central elements come from threading links by Chebyshev polynomials.
URL:https://colleges.claremont.edu/ccms/event/chebyshev-threadings-in-skein-algebras-for-punctured-surfaces-robert-bowden-hmc/
LOCATION:Fletcher 110\, Pitzer College\, 1050 N Mills Ave\, Claremont\, CA\, 91711\, United States
CATEGORIES:Topology Seminar
ORGANIZER;CN="Bahar Acu":MAILTO:Bahar_Acu@pitzer.edu
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BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20221121T150000
DTEND;TZID=America/Los_Angeles:20221121T160000
DTSTAMP:20221116T222616Z
CREATED:20221116T222616Z
LAST-MODIFIED:20221116T222616Z
UID:2996-1669042800-1669046400@colleges.claremont.edu
SUMMARY:Confronting the Legacy of the Human Betterment Foundation at Caltech 
DESCRIPTION:The Human Betterment Foundation was a pro-eugenics think-tank operating in the 1930s and early 1940s out of Pasadena\, California. Its aim was to influence public and medical opinion in favor of sterilization of “socially undesirable elements”: disabled\, poor\, and racialized people. Many board members had ties to Caltech\, most notably Caltech’s then-president Robert Millikan. Upon the HBF’s disincorporation following its founder E.S. Gosney’s death in 1942\, the HBF’s financial assets were given to Caltech and its records were placed in the Caltech archives.\n\nPlease join us for a brief presentation by Jane Panangaden and collective discussion on the recent activism by Caltech students aimed at bringing the HBF’s activities to light and pushing the Caltech administration to make changes on campus. These changes include both symbolic recognition in the form of renaming buildings which previously honored HBF board members\, to material changes such as improvements to students’ health insurance plans and financial support for racially minoritized scholars. 
URL:https://colleges.claremont.edu/ccms/event/confronting-the-legacy-of-the-human-betterment-foundation-at-caltech/
LOCATION:Fletcher 110\, Pitzer College\, 1050 N Mills Ave\, Claremont\, CA\, 91711\, United States
CATEGORIES:History and Philosophy of Mathematics Seminar
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DTSTART;TZID=America/Los_Angeles:20221107T150000
DTEND;TZID=America/Los_Angeles:20221107T160000
DTSTAMP:20221014T174352Z
CREATED:20221014T174352Z
LAST-MODIFIED:20221014T174352Z
UID:2962-1667833200-1667836800@colleges.claremont.edu
SUMMARY:The Sceptical Mathematician: How John Wallis Saved Mathematics for the Royal Society (Amir Alexander\, UCLA)
DESCRIPTION:The members of the “Invisible College” and the early Royal Society championed an experimental approach to the study of nature as the proper path to the advancement of knowledge and the preservation of civic peace. Mathematics\, while admired\, was also viewed with suspicion\, as potentially dogmatic and coercive. John Wallis\, the leading mathematician in the group\, set out to reconcile his field with the ideals of the early Royal Society by developing a radical new approach. Whereas traditional mathematics prided itself on irrefutable deductive proofs\, Wallis’ approach relied on material intuition\, inductive reasoning\, and truth-claims founded on consensus\, not coercion. It was a new mathematics modeled on the Society’s experimental philosophy.
URL:https://colleges.claremont.edu/ccms/event/the-sceptical-mathematician-how-john-wallis-saved-mathematics-for-the-royal-society-amir-alexander-ucla/
LOCATION:Fletcher 110\, Pitzer College\, 1050 N Mills Ave\, Claremont\, CA\, 91711\, United States
CATEGORIES:History and Philosophy of Mathematics Seminar
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BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20221024T150000
DTEND;TZID=America/Los_Angeles:20221024T160000
DTSTAMP:20221014T173109Z
CREATED:20221014T173109Z
LAST-MODIFIED:20221014T173109Z
UID:2961-1666623600-1666627200@colleges.claremont.edu
SUMMARY:H.S.M. Coxeter’s Theory of Accessibility: A Narrative in the Language of Synthetic Projective Geometry (Elena Marchisotto\, Cal State Northridge)
DESCRIPTION:The relation of accessible points in a projective incidence plane defined by Coxeter in the 1960s is the focus of my narrative. It reveals historical pathways bookending the 19th and 20th centuries that bring G.K.C. von Staudt\, Mario Pieri\, Marvin Greenberg and others into the conversation. The published references to Coxeter’s theory\, including his own\, are few. Were it not for his letter to me in the 1980s\, the myriad of interesting mathematical and historical connections emanating from it might have remained in the shadows. My narrative will address how accessible points behave in different types of projective planes partitioned in terms interior/exterior points of conics. Its language pays homage to the invention of geometry\, and shows what can be gained from the power of synthetic methods. \nReferences: \nPambuccian\, V. and Schacht\, C.: The case for the irreducibility of geometry to algebra. Philos. Math. (III) 30\, 1–31 (2022). https://academic.oup.com/philmat/article-abstract/30/1/1/6371269?redirectedFrom=fulltext \nMarchisotto\, E.A. C.: H.S.M. Coxeter’s Theory of Accessibility: From Mario Pieri to Marvin Greenberg. Results in Mathematics 77(5)\, 1-61 (July 2022). DOI: 10.1007/s00025-022-01690-9
URL:https://colleges.claremont.edu/ccms/event/h-s-m-coxeters-theory-of-accessibility-a-narrative-in-the-language-of-synthetic-projective-geometry-elena-marchisotto-cal-state-northridge/
LOCATION:Fletcher 110\, Pitzer College\, 1050 N Mills Ave\, Claremont\, CA\, 91711\, United States
CATEGORIES:History and Philosophy of Mathematics Seminar
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DTSTART;TZID=America/Los_Angeles:20220919T150000
DTEND;TZID=America/Los_Angeles:20220919T160000
DTSTAMP:20220919T154540Z
CREATED:20220912T230200Z
LAST-MODIFIED:20220919T154540Z
UID:2918-1663599600-1663603200@colleges.claremont.edu
SUMMARY:History and Philosophy of Mathematics Seminar (organizational meeting and reading discussion)
DESCRIPTION:The first meeting of this semester’s seminar in the history and philosophy of mathematics will take place on Monday\, September 19th from 3 to 4 PM in Avery 202 on the Pitzer Campus (and on zoom). We will spend the time sharing ideas for future meetings and discussing the chapter on “Algebraic Logic” (chapter 9) in Lukas Verburgt’s new book on John Venn: A Life in Logic (a historical book on a philosophical mathematician). Here is the link to the library copy (https://ccl.on.worldcat.org/oclc/1294295070). \n 
URL:https://colleges.claremont.edu/ccms/event/history-and-philosophy-of-mathematics-seminar-organizational-meeting-and-reading-discussion/
LOCATION:Fletcher 110\, Pitzer College\, 1050 N Mills Ave\, Claremont\, CA\, 91711\, United States
CATEGORIES:History and Philosophy of Mathematics Seminar
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