BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//CMSA - ECPv6.17.1//NONSGML v1.0//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
X-WR-CALNAME:CMSA
X-ORIGINAL-URL:https://cmsa.fas.harvard.edu
X-WR-CALDESC:Events for CMSA
REFRESH-INTERVAL;VALUE=DURATION:PT1H
X-Robots-Tag:noindex
X-PUBLISHED-TTL:PT1H
BEGIN:VTIMEZONE
TZID:America/New_York
BEGIN:DAYLIGHT
TZOFFSETFROM:-0500
TZOFFSETTO:-0400
TZNAME:EDT
DTSTART:20250309T070000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0400
TZOFFSETTO:-0500
TZNAME:EST
DTSTART:20251102T060000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:-0500
TZOFFSETTO:-0400
TZNAME:EDT
DTSTART:20260308T070000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0400
TZOFFSETTO:-0500
TZNAME:EST
DTSTART:20261101T060000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:-0500
TZOFFSETTO:-0400
TZNAME:EDT
DTSTART:20270314T070000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0400
TZOFFSETTO:-0500
TZNAME:EST
DTSTART:20271107T060000
END:STANDARD
END:VTIMEZONE
BEGIN:VTIMEZONE
TZID:America/New_York
BEGIN:DAYLIGHT
TZOFFSETFROM:-0500
TZOFFSETTO:-0400
TZNAME:EDT
DTSTART:20260308T070000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0400
TZOFFSETTO:-0500
TZNAME:EST
DTSTART:20261101T060000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:-0500
TZOFFSETTO:-0400
TZNAME:EDT
DTSTART:20270314T070000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0400
TZOFFSETTO:-0500
TZNAME:EST
DTSTART:20271107T060000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:-0500
TZOFFSETTO:-0400
TZNAME:EDT
DTSTART:20280312T070000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0400
TZOFFSETTO:-0500
TZNAME:EST
DTSTART:20281105T060000
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20260908T161500
DTEND;TZID=America/New_York:20260908T180000
DTSTAMP:20260729T164815Z
CREATED:20260729T164815Z
LAST-MODIFIED:20260729T164815Z
UID:10003977-1788884100-1788890400@cmsa.fas.harvard.edu
SUMMARY:Geometry and Quantum Theory Seminar
DESCRIPTION:Joint Math/CMSA Geometry and Quantum Theory Seminar \n 
URL:https://cmsa.fas.harvard.edu/event/quantumgeo_9826/
LOCATION:Science Center 507\, 1 Oxford Street\, Cambridge\, 02138
CATEGORIES:Geometry and Quantum Theory Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20260915T161500
DTEND;TZID=America/New_York:20260915T180000
DTSTAMP:20260729T185926Z
CREATED:20260729T185926Z
LAST-MODIFIED:20260729T185926Z
UID:10003985-1789488900-1789495200@cmsa.fas.harvard.edu
SUMMARY:Geometry and Quantum Theory Seminar
DESCRIPTION:Joint Math/CMSA Geometry and Quantum Theory Seminar \n 
URL:https://cmsa.fas.harvard.edu/event/quantumgeo_91526/
LOCATION:Science Center 507\, 1 Oxford Street\, Cambridge\, 02138
CATEGORIES:Geometry and Quantum Theory Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20260916T090000
DTEND;TZID=America/New_York:20260916T103000
DTSTAMP:20260707T141614Z
CREATED:20260422T170335Z
LAST-MODIFIED:20260707T141614Z
UID:10003938-1789549200-1789554600@cmsa.fas.harvard.edu
SUMMARY:CMSA/Tsinghua Math-Science Literature Lecture: Robert Gompf: On classifying smoothings of R^4–from the beginning to the present
DESCRIPTION:CMSA/Tsinghua Math-Science Literature Lecture \nDate: September 16\, 2026 \nTime: 9:00 – 10:30 am ET \nLocation: CMSA G10\, 20 Garden Street & via Zoom Webinar \n  \nPlease register to attend \nIn-person registration\n \nZoom Webinar registration \n  \n \nSpeaker: Robert E. Gompf\, University of Texas\, Austin \nTitle: On classifying smoothings of R^4–from the beginning to the present \nAbstract: The field of 4-manifold topology was born around 1981 with two independent revolutionary breakthroughs\, by Fields medalists Michael Freedman and Simon Donaldson. Freedman showed that topological 4-manifolds obeyed the well-developed theory of higher-dimensional manifolds\, while Donaldson used nonlinear analysis (gauge theory) to show that smooth 4-manifolds are quite different from their high-dimensional counterparts. The clash between the two theories makes 4-manifold topology uniquely intricate within manifold theory. One of the most startling consequences is that unlike in other dimensions\, Euclidean 4-space R^4 admits exotic smoothings. Equivalently\, there are smooth 4-manifolds that are homeomorphic\, but not diffeomorphic\, to R^4. We will trace the classification theory of these manifolds from their discovery to the most recent development (joint with Aristotelis Panagiotopoulos) that they cannot be classified by any countable family of numerical invariants. \n  \n\nBeginning in Spring 2020\, the CMSA began hosting a lecture series on literature in the mathematical sciences\, with a focus on significant developments in mathematics that have influenced the discipline\, and the lifetime accomplishments of significant scholars. \n  \n 
URL:https://cmsa.fas.harvard.edu/event/mathscilit2026_rg/
LOCATION:CMSA Room G10\, CMSA\, 20 Garden Street\, Cambridge\, MA\, 02138\, United States
CATEGORIES:Math Science Literature Lecture Series,Public Lecture,Special Lectures
ATTACH;FMTTYPE=image/png:https://cmsa.fas.harvard.edu/media/Mathlit_91626.png
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20260922T161500
DTEND;TZID=America/New_York:20260922T180000
DTSTAMP:20260729T190028Z
CREATED:20260729T190028Z
LAST-MODIFIED:20260729T190028Z
UID:10003986-1790093700-1790100000@cmsa.fas.harvard.edu
SUMMARY:Geometry and Quantum Theory Seminar
DESCRIPTION:Joint Math/CMSA Geometry and Quantum Theory Seminar \n 
URL:https://cmsa.fas.harvard.edu/event/quantumgeo_92226/
LOCATION:Science Center 507\, 1 Oxford Street\, Cambridge\, 02138
CATEGORIES:Geometry and Quantum Theory Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20260923T120000
DTEND;TZID=America/New_York:20260923T130000
DTSTAMP:20260518T134620Z
CREATED:20260423T161606Z
LAST-MODIFIED:20260518T134620Z
UID:10003939-1790164800-1790168400@cmsa.fas.harvard.edu
SUMMARY:CMSA Q&A Seminar: Hugh Woodin\, Harvard
DESCRIPTION:CMSA Q&A Seminar \nSpeaker: Hugh Woodin\, Harvard \nTitle: Truth\, proof\, and AI \n  \n 
URL:https://cmsa.fas.harvard.edu/event/cmsaqa_92326/
LOCATION:Common Room\, CMSA\, 20 Garden Street\, Cambridge\, MA\, 02138\, United States
CATEGORIES:CMSA Q&A Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20260929T161500
DTEND;TZID=America/New_York:20260929T180000
DTSTAMP:20260729T190052Z
CREATED:20260729T190052Z
LAST-MODIFIED:20260729T190052Z
UID:10003987-1790698500-1790704800@cmsa.fas.harvard.edu
SUMMARY:Geometry and Quantum Theory Seminar
DESCRIPTION:Joint Math/CMSA Geometry and Quantum Theory Seminar \n 
URL:https://cmsa.fas.harvard.edu/event/quantumgeo_92926/
LOCATION:Science Center 507\, 1 Oxford Street\, Cambridge\, 02138
CATEGORIES:Geometry and Quantum Theory Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20261006T161500
DTEND;TZID=America/New_York:20261006T180000
DTSTAMP:20260729T190132Z
CREATED:20260729T190132Z
LAST-MODIFIED:20260729T190132Z
UID:10003988-1791303300-1791309600@cmsa.fas.harvard.edu
SUMMARY:Geometry and Quantum Theory Seminar
DESCRIPTION:Joint Math/CMSA Geometry and Quantum Theory Seminar \n 
URL:https://cmsa.fas.harvard.edu/event/quantumgeo_10626/
LOCATION:Science Center 507\, 1 Oxford Street\, Cambridge\, 02138
CATEGORIES:Geometry and Quantum Theory Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20261013T161500
DTEND;TZID=America/New_York:20261013T180000
DTSTAMP:20260729T190156Z
CREATED:20260729T190156Z
LAST-MODIFIED:20260729T190156Z
UID:10003989-1791908100-1791914400@cmsa.fas.harvard.edu
SUMMARY:Geometry and Quantum Theory Seminar
DESCRIPTION:Joint Math/CMSA Geometry and Quantum Theory Seminar \n 
URL:https://cmsa.fas.harvard.edu/event/quantumgeo_101326/
LOCATION:Science Center 507\, 1 Oxford Street\, Cambridge\, 02138
CATEGORIES:Geometry and Quantum Theory Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20261020T161500
DTEND;TZID=America/New_York:20261020T180000
DTSTAMP:20260729T190844Z
CREATED:20260729T190844Z
LAST-MODIFIED:20260729T190844Z
UID:10003990-1792512900-1792519200@cmsa.fas.harvard.edu
SUMMARY:Geometry and Quantum Theory Seminar
DESCRIPTION:Joint Math/CMSA Geometry and Quantum Theory Seminar \n 
URL:https://cmsa.fas.harvard.edu/event/quantumgeo_102026/
LOCATION:Science Center 507\, 1 Oxford Street\, Cambridge\, 02138
CATEGORIES:Geometry and Quantum Theory Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20261027T161500
DTEND;TZID=America/New_York:20261027T180000
DTSTAMP:20260729T190908Z
CREATED:20260729T190908Z
LAST-MODIFIED:20260729T190908Z
UID:10003991-1793117700-1793124000@cmsa.fas.harvard.edu
SUMMARY:Geometry and Quantum Theory Seminar
DESCRIPTION:Joint Math/CMSA Geometry and Quantum Theory Seminar \n 
URL:https://cmsa.fas.harvard.edu/event/quantumgeo_102726/
LOCATION:Science Center 507\, 1 Oxford Street\, Cambridge\, 02138
CATEGORIES:Geometry and Quantum Theory Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20261029T090000
DTEND;TZID=America/New_York:20261029T103000
DTSTAMP:20260810T222440Z
CREATED:20260810T222440Z
LAST-MODIFIED:20260810T222440Z
UID:10004038-1793264400-1793269800@cmsa.fas.harvard.edu
SUMMARY:CMSA/Tsinghua Math-Science Literature Lecture: Peng Shan\, Tsinghua University
DESCRIPTION:CMSA/Tsinghua Math-Science Literature Lecture \nDate: Thursday\, October 29\, 2026 \nTime: 9:00 – 10:30 am ET \nLocation: online via Zoom Webinar \n  \nPlease register to attend \nZoom Webinar registration \n  \nSpeaker: Peng Shan\, Tsinghua University \nTitle TBA \n  \n\nBeginning in Spring 2020\, the CMSA began hosting a lecture series on literature in the mathematical sciences\, with a focus on significant developments in mathematics that have influenced the discipline\, and the lifetime accomplishments of significant scholars. \n  \n 
URL:https://cmsa.fas.harvard.edu/event/cmsa-tsinghua-math-science-literature-lecture-peng-shan-tsinghua-university/
LOCATION:CMSA Room G10\, CMSA\, 20 Garden Street\, Cambridge\, MA\, 02138\, United States
CATEGORIES:Math Science Literature Lecture Series,Public Lecture,Special Lectures
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20261103T161500
DTEND;TZID=America/New_York:20261103T180000
DTSTAMP:20260729T190945Z
CREATED:20260729T190945Z
LAST-MODIFIED:20260729T190945Z
UID:10003992-1793722500-1793728800@cmsa.fas.harvard.edu
SUMMARY:Geometry and Quantum Theory Seminar
DESCRIPTION:Joint Math/CMSA Geometry and Quantum Theory Seminar \n 
URL:https://cmsa.fas.harvard.edu/event/quantumgeo_11326/
LOCATION:Science Center 507\, 1 Oxford Street\, Cambridge\, 02138
CATEGORIES:Geometry and Quantum Theory Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20261106T090000
DTEND;TZID=America/New_York:20261107T170000
DTSTAMP:20260727T181515Z
CREATED:20260423T160818Z
LAST-MODIFIED:20260727T181515Z
UID:10003936-1793955600-1794070800@cmsa.fas.harvard.edu
SUMMARY:Northeast Conference on Categorical Methods
DESCRIPTION:Northeast Conference on Categorical Methods \nDates: November 6–​7\, 2026  \nLocation: CMSA G10\, 20 Garden St.\, Cambridge MA 02138 \n\n\n\n\nThis conference is intended to bring together researchers in all areas of mathematics and mathematical physics whose work involves the use of methods from categorical algebra\, abstract homotopy theory\, and higher category theory. Our goal is to showcase new\, exciting research and offer an avenue for researchers from the Northeast US to discuss their work and collaborate with people in this ever-growing community. \n\nThere will be time for 4 short talks by early-career mathematicians. \n\nREGISTRATION FORM (link) Deadline: September 20\, 2026 \n\nInvited Speakers \n\nAndrew Blumberg\, Columbia University\nSoren Galatius\, Columbia University\nTony Pantev\, University of Pennsylvania\nNick Rozenblyum\, University of Toronto\nTomer Schlank\, University of Chicago/Harvard University\nBrian Williams\, Boston University\nInna Zakharevich\, Cornell University\n\n\nOrganized by Dan Freed\, Harvard Math & CMSA; Owen Gwilliam\, UMass Amherst; and Lorenzo Riva\, Harvard CMSA
URL:https://cmsa.fas.harvard.edu/event/cm/
LOCATION:CMSA Room G10\, CMSA\, 20 Garden Street\, Cambridge\, MA\, 02138\, United States
CATEGORIES:Workshop
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20261110T161500
DTEND;TZID=America/New_York:20261110T180000
DTSTAMP:20260729T191011Z
CREATED:20260729T191011Z
LAST-MODIFIED:20260729T191011Z
UID:10003993-1794327300-1794333600@cmsa.fas.harvard.edu
SUMMARY:Geometry and Quantum Theory Seminar
DESCRIPTION:Joint Math/CMSA Geometry and Quantum Theory Seminar \n 
URL:https://cmsa.fas.harvard.edu/event/quantumgeo_111026/
LOCATION:Science Center 507\, 1 Oxford Street\, Cambridge\, 02138
CATEGORIES:Geometry and Quantum Theory Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20261117T161500
DTEND;TZID=America/New_York:20261117T180000
DTSTAMP:20260729T191047Z
CREATED:20260729T191047Z
LAST-MODIFIED:20260729T191047Z
UID:10003994-1794932100-1794938400@cmsa.fas.harvard.edu
SUMMARY:Geometry and Quantum Theory Seminar
DESCRIPTION:Joint Math/CMSA Geometry and Quantum Theory Seminar \n 
URL:https://cmsa.fas.harvard.edu/event/quantumgeo_111726/
LOCATION:Science Center 507\, 1 Oxford Street\, Cambridge\, 02138
CATEGORIES:Geometry and Quantum Theory Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20261124T161500
DTEND;TZID=America/New_York:20261124T180000
DTSTAMP:20260729T192523Z
CREATED:20260729T192523Z
LAST-MODIFIED:20260729T192523Z
UID:10003996-1795536900-1795543200@cmsa.fas.harvard.edu
SUMMARY:Geometry and Quantum Theory Seminar
DESCRIPTION:Joint Math/CMSA Geometry and Quantum Theory Seminar \n 
URL:https://cmsa.fas.harvard.edu/event/quantumgeo_112426/
LOCATION:Science Center 507\, 1 Oxford Street\, Cambridge\, 02138
CATEGORIES:Geometry and Quantum Theory Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20261201T161500
DTEND;TZID=America/New_York:20261201T180000
DTSTAMP:20260729T192550Z
CREATED:20260729T192550Z
LAST-MODIFIED:20260729T192550Z
UID:10003997-1796141700-1796148000@cmsa.fas.harvard.edu
SUMMARY:Geometry and Quantum Theory Seminar
DESCRIPTION:Joint Math/CMSA Geometry and Quantum Theory Seminar \n 
URL:https://cmsa.fas.harvard.edu/event/quantumgeo_12126/
LOCATION:Science Center 507\, 1 Oxford Street\, Cambridge\, 02138
CATEGORIES:Geometry and Quantum Theory Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20270331T160000
DTEND;TZID=America/New_York:20270331T170000
DTSTAMP:20260723T193602Z
CREATED:20260526T163616Z
LAST-MODIFIED:20260723T193602Z
UID:10003947-1806508800-1806512400@cmsa.fas.harvard.edu
SUMMARY:2027 Ding Shum Lecture: Avi Wigderson\, IAS
DESCRIPTION:2027 Ding Shum Lecture \nDate: Wednesday\, March 31\, 2027 \nTime: 4:00 pm \nLocation: Harvard Science Center Hall D & via Zoom Webinar \n\n  \n\n \nSpeaker: Avi Wigderson\, IAS \n\nA reception will follow the talk in the Mathematics Department Austine & Chilton McDonnell Common Room\, 4th floor\, Science Center. \n\n\n\n\n\nThis event is made possible by the generous funding of Ding Lei and Harry Shum.\n\n\n  \n\n 
URL:https://cmsa.fas.harvard.edu/event/2027_dingshum/
LOCATION:Harvard Science Center\, 1 Oxford Street\, Cambridge\, MA\, 02138
CATEGORIES:Ding Shum Lecture,Event,Public Lecture,Special Lectures
END:VEVENT
END:VCALENDAR