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X-WR-CALDESC:Events for CMSA
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DTSTART;TZID=America/New_York:20260915T090000
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SUMMARY:Lagrangian Floer Theory and Applications Program
DESCRIPTION:Lagrangian Floer theory and Applications Program \nDates: September 15–November 21\, 2026 \nLocation: CMSA G10\, 20 Garden St.\, Cambridge MA 02138 \nThis thematic program will focus on recent developments in Lagrangian Floer theory and applications.  These include the development of family Floer theory\, degeneration techniques\, Floer homotopy theory in the Lagrangian case\, Floer theory in prime characteristic\, and applications to problems in singularity theory\, geometry and dynamics. \nA one-week workshop will be held near the start of the program (September 28 – October 2\, 2026)\, with the same title as the thematic program. \nOrganizers: Denis Auroux (Harvard)\, Jonny Evans (Lancaster)\, and Chris Woodward (Rutgers) \n  \nTo express interest in attending the workshop or program\, and to apply for funding if available\, please fill out the form.  \nFunding from the National Science Foundation may be available for US-based graduate students and postdoctoral fellows. \n  \n \nimage: Water Sky Garden\, Vancouver\nDate: 31 January 2010\, 12:57:46\nSource: Studio Echelman\nAuthor: Peter Vanderwarker\, Studio Echelman \n 
URL:https://cmsa.fas.harvard.edu/event/lft2026/
LOCATION:CMSA 20 Garden Street Cambridge\, Massachusetts 02138 United States
CATEGORIES:Programs
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DTSTART;VALUE=DATE:20260916
DTEND;VALUE=DATE:20260918
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SUMMARY:Ahlfors Lectures: Mohammed Abouzaid
DESCRIPTION:Ahlfors Lectures  \nDates: September 16 & 17\, 2026 \nTime: 4:00–5:00 pm \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/webp:https://cmsa.fas.harvard.edu/media/abouzaid_mohammed_0.webp
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