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DTSTART;TZID=America/New_York:20260911T143000
DTEND;TZID=America/New_York:20260911T153000
DTSTAMP:20260914T223220Z
CREATED:20260909T172459Z
LAST-MODIFIED:20260914T223220Z
UID:10004042-1789137000-1789140600@cmsa.fas.harvard.edu
SUMMARY:CMSA Special Lecture: New Math + AI Developments in Fluid Mechanics
DESCRIPTION:CMSA Special Lecture\nTime: 2:30 pm ET\nDate: Friday\, Sep. 11\, 2026\nLocation: Harvard Science Center Hall A & via Zoom Webinar \n  \nLecture Video \n \n  \nWith the announcement this week that AI has finished off a solution to one of the Millennium Prize Problems\, the Harvard CMSA will host this special lecture to review recent developments on the existence and smoothness of solutions to the Navier–Stokes equation. \n  \nSpeaker: Javier Gomez-Serrano\, Brown University \nTitle: New Math + AI Developments in Fluid Mechanics \nAbstract: In this talk I will discuss recent progress on finite-time singularity formation for several fluid equations\, from model problems to the Navier–Stokes and Euler systems themselves. I will put this progress in context and close with the recently announced resolution of the Navier–Stokes existence and smoothness problem\, via an explicit construction exhibiting finite-time blow-up from smooth data alongside closely related\, independently obtained blow-up results for forced Euler. Both rely on an AI-assisted proof search\, marking a new mode of mathematical discovery for problems of this depth. \n  \nThis lecture will be given in person in Science Center Lecture Hall A\, 1 Oxford Street\, Cambridge MA & via Zoom Webinar (registration required). \nZoom Webinar Registration
URL:https://cmsa.fas.harvard.edu/event/navierstokes/
LOCATION:CMSA Room G10\, CMSA\, 20 Garden Street\, Cambridge\, MA\, 02138\, United States
CATEGORIES:Colloquia & Seminar,Special Lectures,Special Seminar
ATTACH;FMTTYPE=image/jpeg:https://cmsa.fas.harvard.edu/media/9.11.26_special-lecture.jpg
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BEGIN:VEVENT
DTSTART;VALUE=DATE:20260916
DTEND;VALUE=DATE:20260918
DTSTAMP:20260908T154855Z
CREATED:20260701T195057Z
LAST-MODIFIED:20260908T154855Z
UID:10003959-1789516800-1789689599@cmsa.fas.harvard.edu
SUMMARY:Ahlfors Lectures: Mohammed Abouzaid
DESCRIPTION:Ahlfors Lectures  \nDates: September 16 & 17\, 2026 \nTime: 4:00–5:00 pm \nLocation: Science Center Hall A \nSpeaker: Mohammed Abouzaid (Stanford) \nRegister to attend in person or online at: https://www.math.harvard.edu/event/ahlfors-lecture-series-mohammed-abouzaid/ \n  \n \n  \nSeptember 16\, 2026 \nTitle: Framed bordism and nearby Lagrangians \nAbstract: The problem of understanding Lagrangian embeddings in symplectic manifolds remains a mystery. The simplest class of symplectic manifolds are the cotangent bundles of smooth manifolds\, which is the setting for the most prominent open problem in the subject: Arnold’s nearby Lagrangian conjecture which asserts the connectedness of the space of Lagrangians for which the relative class of the symplectic form vanishes. In particular\, the conjecture asserts that all such submanifolds are diffeomorphic. In view of recent work with Alvarez-Gavela\, Courte\, and Kragh\, as well as work of Procelli and Smith\, I will use the question as a motivation for joint work with Andrew Blumberg on a bordism-theoretic approach to define bordism-valued refinements of Floer homology. \n  \nSeptember 17\, 2026 \nTitle: Complex bordism and Hamiltonian fibrations \nAbstract: As a consequence of his theory of weights\, Deligne proved that smooth complex projective varieties\, carrying a smooth morphism to the projective line\, have rational cohomology groups that are isomorphic to the tensor product of the cohomology of the fibre with that of the base. In joint work with McLean and Smith\, we should that the result not only holds for symplectic manifolds\, but is in fact a consequence of an analogous result that holds for complex cobordism. The proof identifies bordism of “stably complex derived orbifolds” as the correct framework in which to formulate these results\, and I will discuss joint work with Shaoyun Bai to understand these bordism groups. \nThe Ahlfors Lecture Series is presented by the Harvard University Math Department in memory of  Professor Lars Ahlfors.
URL:https://cmsa.fas.harvard.edu/event/ahlfors2026/
LOCATION:Harvard Science Center\, 1 Oxford Street\, Cambridge\, MA\, 02138
CATEGORIES:Event,Public Lecture,Special Lectures
ATTACH;FMTTYPE=image/jpeg:https://cmsa.fas.harvard.edu/media/Ahlfors-Lecture-Series-Poster-1.jpg
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DTSTART;TZID=America/New_York:20260916T090000
DTEND;TZID=America/New_York:20260916T103000
DTSTAMP:20260921T170120Z
CREATED:20260422T170335Z
LAST-MODIFIED:20260921T170120Z
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  \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
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