BEGIN:VCALENDAR VERSION:2.0 PRODID:-//CMSA - ECPv6.15.18//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:VEVENT DTSTART;TZID=America/New_York:20260302T163000 DTEND;TZID=America/New_York:20260302T173000 DTSTAMP:20260501T213601 CREATED:20260206T191834Z LAST-MODIFIED:20260224T141143Z UID:10003890-1772469000-1772472600@cmsa.fas.harvard.edu SUMMARY:Inverse problems in soft and active matter DESCRIPTION:Colloquium \nSpeaker: L. Mahadevan\, Harvard \nTitle: Inverse problems in soft and active matter \nAbstract: How can one grow a face or a flower from a flat sheet? Fold a sheet into an origami pattern? Control phase separation? Transport a drop of active matter?  Steer an ant swarm? I will discuss potential answers to some of these inverse problems that unites ideas from optimal control and optimal transport for the steering of particles and fields. URL:https://cmsa.fas.harvard.edu/event/colloquium-3226/ LOCATION:CMSA Room G10\, CMSA\, 20 Garden Street\, Cambridge\, MA\, 02138\, United States CATEGORIES:Colloquium ATTACH;FMTTYPE=image/png:https://cmsa.fas.harvard.edu/media/CMSA-Colloquium-3.2.2026.docx-scaled.png END:VEVENT BEGIN:VEVENT DTSTART;TZID=America/New_York:20260303T161500 DTEND;TZID=America/New_York:20260303T180000 DTSTAMP:20260501T213601 CREATED:20251223T191945Z LAST-MODIFIED:20260209T160052Z UID:10003853-1772554500-1772560800@cmsa.fas.harvard.edu SUMMARY:Solitonic Symmetry: Cohomology with TFT Coefficients DESCRIPTION:Geometry and Quantum Theory Seminar \nSpeaker: Sanjay Raman\, Harvard \nTitle: Solitonic Symmetry: Cohomology with TFT Coefficients \nAbstract: We review the formalism of https://arxiv.org/pdf/2307.00939\, which develops the theory of solitonic symmetry in quantum field theory. The algebraic structure of solitonic symmetry is determined by the fusion of topological functionals in a given path-integral formulation of topological field theory\, and acts generically on topological defects determined by homotopy classes of maps to a “space of fields.” We will argue that the structure of solitonic symmetry in a theory with field space (Y) assembles into what looks like the cohomology of (Y) with coefficients in TFTs. We study this formalism in examples and show in particular that the maximal invertible solitonic subsymmetry reduces to the expected result. URL:https://cmsa.fas.harvard.edu/event/quantumgeo_3326/ LOCATION:Science Center 507\, 1 Oxford Street\, Cambridge\, 02138 CATEGORIES:Geometry and Quantum Theory Seminar ATTACH;FMTTYPE=image/png:https://cmsa.fas.harvard.edu/media/CMSA-Geometry-Quantum-Theory-3.3.26-scaled.png END:VEVENT BEGIN:VEVENT DTSTART;TZID=America/New_York:20260305T133000 DTEND;TZID=America/New_York:20260305T143000 DTSTAMP:20260501T213601 CREATED:20260220T155737Z LAST-MODIFIED:20260303T174902Z UID:10003909-1772717400-1772721000@cmsa.fas.harvard.edu SUMMARY:Fukaya categories and higher representation theory DESCRIPTION:Differential Geometry and Physics Seminar \nSpeaker: Vivek Shende (Syddansk Universitet & UC Berkeley) \nTitle: Fukaya categories and higher representation theory \nAbstract: I will explain how Lagrangian Floer homology in certain monopole moduli spaces recovers the Khovanov homology and its relatives\, by a description strikingly similar to the Oszvath-Szabo Heegard-Floer theory.  I will also explain how the ‘sectorial descent’ of Fukaya categories can be used to construct Rouquier’s promised monoidal structure on the category of representations of the categorified “positive part” of the quantum group.  This is joint work with Mina Aganagic\, Elise LePage\, and Peng Zhou. \nNote: Location change to Harvard Science Center Room 300H \n  URL:https://cmsa.fas.harvard.edu/event/dgphys_3526/ LOCATION:Harvard Science Center\, 1 Oxford Street\, Cambridge\, MA\, 02138 CATEGORIES:Differential Geometry and Physics Seminar ATTACH;FMTTYPE=image/png:https://cmsa.fas.harvard.edu/media/DG-Physics-Seminar-3.5.26.docx-scaled.png END:VEVENT BEGIN:VEVENT DTSTART;TZID=America/New_York:20260306T150000 DTEND;TZID=America/New_York:20260306T171500 DTSTAMP:20260501T213601 CREATED:20260205T145433Z LAST-MODIFIED:20260225T152603Z UID:10003889-1772809200-1772817300@cmsa.fas.harvard.edu SUMMARY:Freedman Seminar: Mattie Ji\, Penn and Jeongwan Haah\, Stanford DESCRIPTION:Freedman Seminar \nSpeakers: Mattie Ji (Penn) and Jeongwan Haah (Stanford) \nMattie Ji Title: Quantum Cellular Automata via Algebraic K-Theory \nAbstract: Algebraic K-theory\, on a very high level\, is the study of how to break apart and assemble objects linearly\, which makes the field amenable to classification questions. In this work\, we apply this methodology to study the classification of quantum cellular automata (QCA). Over an arbitrary commutative ring R and a general class of metric spaces X\, we construct a space of QCA that depends only on the large-scale (coarse) geometry of X. We explain how QCA classification groups (QCA modulo circuits) either arise naturally as or are refined by this space in most cases of interest. \nMotivated by negative K-theory\, we also show the classification of QCA on Euclidean lattices is given by an $\Omega$-spectrum indexed by the dimension. As a corollary\, we also obtain a non-connective delooping of the K-theory of Azumaya R-algebras\, whose negative homotopy groups are the QCA classification groups. When R is the complex numbers\, our method can be adapted to yield an $\Omega$-spectrum for QCA of $C^*$-algebras with unitary circuits. This talk is based on joint work with Bowen Yang. \n  \nJeongwan Haah Title: Fermionic QCA in 2d are trivial \nAbstract: We consider bounded spread automorphisms of Z/2-graded algebra (fermionic QCA) on the two-dimensional lattice and prove that every fQCA is a unitary circuit followed by fermionic shifts when stabilized by Majorana modes. This is an analog of a theorem by Freedman and Hastings for the case of ungraded algebras. The overall argument follows a similar line in that we show invertible subalgebras in 1d is trivial\, but the stabilization is used crucially. By an existing argument\, this triviality of fQCA in 2d implies that the 3d (bosonic) QCA that disentangles the Walker-Wang model with three-fermion theory is nontrivial. The latter was known to be nontrivial against Clifford gates but remained conjectural against more general unitary gates. To my knowledge\, this gives the only example ungraded QCA that is proved to be nontrivial against general unitary circuits and shifts\, and the only example ungraded invertible subalgebra that is not isomorphic to any tensor product algebra. I will explain elements new to the fermionic setting and give an overview of the nontriviality argument. (Based on an upcoming work with Jeffrey Kwan and David Long) URL:https://cmsa.fas.harvard.edu/event/freedman_3626/ LOCATION:Hybrid CATEGORIES:Freedman Seminar ATTACH;FMTTYPE=image/png:https://cmsa.fas.harvard.edu/media/CMSA-Freedman-Seminar-3.6.26-scaled.png END:VEVENT BEGIN:VEVENT DTSTART;TZID=America/New_York:20260309T150000 DTEND;TZID=America/New_York:20260309T160000 DTSTAMP:20260501T213601 CREATED:20260224T160904Z LAST-MODIFIED:20260224T160904Z UID:10003910-1773068400-1773072000@cmsa.fas.harvard.edu SUMMARY:Quantum Field Theory and Physical Mathematics DESCRIPTION:Quantum Field Theory and Physical Mathematics Seminar \nSpeaker: Davide Gaiotto (Perimeter Institute) URL:https://cmsa.fas.harvard.edu/event/qft_3926-2/ LOCATION:CMSA Room G10\, CMSA\, 20 Garden Street\, Cambridge\, MA\, 02138\, United States CATEGORIES:Quantum Field Theory and Physical Mathematics END:VEVENT BEGIN:VEVENT DTSTART;TZID=America/New_York:20260310T161500 DTEND;TZID=America/New_York:20260310T180000 DTSTAMP:20260501T213601 CREATED:20260302T172556Z LAST-MODIFIED:20260309T175638Z UID:10003914-1773159300-1773165600@cmsa.fas.harvard.edu SUMMARY:TQFTs do not detect the Milnor sphere DESCRIPTION:Joint Math/CMSA Geometry and Quantum Theory Seminar \nSpeaker: Lorenzo Riva\, Harvard CMSA \nTitle: TQFTs do not detect the Milnor sphere \nAbstract: I will talk about the recent paper of Gripaios and Randall-Williams with that title\, where they prove that a functorial TQFT (i.e. a symmetric monoidal functor from the n-dimensional bordism category into a suitably nice target category) assigns the same value to homotopy spheres that bound a parallelizable manifold\, extending some no-go theorems of Reutter and Schommer-Pries. URL:https://cmsa.fas.harvard.edu/event/quantumgeo_31026/ LOCATION:Science Center 507\, 1 Oxford Street\, Cambridge\, 02138 CATEGORIES:Geometry and Quantum Theory Seminar ATTACH;FMTTYPE=image/png:https://cmsa.fas.harvard.edu/media/Geometry-and-Quantum-Theory-Seminar-03.10.26-scaled.png END:VEVENT BEGIN:VEVENT DTSTART;TZID=America/New_York:20260312T133000 DTEND;TZID=America/New_York:20260312T143000 DTSTAMP:20260501T213601 CREATED:20260309T143543Z LAST-MODIFIED:20260309T161222Z UID:10003915-1773322200-1773325800@cmsa.fas.harvard.edu SUMMARY:Strongly adapted contact geometry of Anosov 3-flows DESCRIPTION:Differential Geometry and Physics Seminar \nSpeaker: Surena Hozoori (Brandeis) \nTitle: Strongly adapted contact geometry of Anosov 3-flows \nAbstract: We will discuss some recent developments in the contact geometric theory of Anosov 3-flows\, whose roots go back to the works of Mitsumatsu and Eliashberg-Thurston in the mid 1990s. In particular\, we provide a contact geometric characterization of Anosov 3-flows based on interactions with Reeb dynamics\, as well as investigate the basic properties of the resulting geometries. Time permitting\, we will discuss how these results allow one to re-approach some classical questions in Anosov dynamics. URL:https://cmsa.fas.harvard.edu/event/dgphys_31226/ LOCATION:CMSA Room G10\, CMSA\, 20 Garden Street\, Cambridge\, MA\, 02138\, United States CATEGORIES:Differential Geometry and Physics Seminar ATTACH;FMTTYPE=image/png:https://cmsa.fas.harvard.edu/media/DG-Physics-Seminar-3.12.26-scaled.png END:VEVENT BEGIN:VEVENT DTSTART;TZID=America/New_York:20260316T150000 DTEND;TZID=America/New_York:20260316T160000 DTSTAMP:20260501T213601 CREATED:20260224T160950Z LAST-MODIFIED:20260311T180714Z UID:10003911-1773673200-1773676800@cmsa.fas.harvard.edu SUMMARY:Finite N indices from branes and negative branes DESCRIPTION:Quantum Field Theory and Physical Mathematics Seminar \nSpeaker: Kasia Budzik (Harvard University) \nTitle: Finite N indices from branes and negative branes \nAbstract: Finite-N effects in large-N gauge theories\, such as trace relations\, are expected to be holographically dual to non-perturbative phenomena in string theory\, such as Giant Graviton branes. A convenient setting to study these effects are supersymmetric indices of U(N) gauge theories. The finite-N indices can be reproduced by a series of corrections to the infinite-N result\, known as the Giant Graviton expansion.\nIn this talk I will present a generalization of the Molien-Weyl formula computing generating functions of invariants of supergroups U(N|M)\, which arise as gauge groups of brane/negative brane systems in string theory. The formula leads to a new expansion relating finite-N and infinite-N indices of U(N) gauge theories. I will comment on its relation to Murthy’s Giant Graviton expansion and suggest a physical interpretation in terms of branes and negative branes. This talk is based on arXiv:2509.20451 and work in progress with Davide Gaiotto. URL:https://cmsa.fas.harvard.edu/event/qft_31626/ LOCATION:CMSA Room G10\, CMSA\, 20 Garden Street\, Cambridge\, MA\, 02138\, United States CATEGORIES:Quantum Field Theory and Physical Mathematics ATTACH;FMTTYPE=image/png:https://cmsa.fas.harvard.edu/media/CMSA-QFT-and-Physical-Mathematics-3.16.26.docx-scaled.png END:VEVENT BEGIN:VEVENT DTSTART;TZID=America/New_York:20260318T140000 DTEND;TZID=America/New_York:20260318T150000 DTSTAMP:20260501T213601 CREATED:20260309T145907Z LAST-MODIFIED:20260311T161332Z UID:10003916-1773842400-1773846000@cmsa.fas.harvard.edu SUMMARY:Dynamic reasoning DESCRIPTION:New Technologies in Mathematics Seminar \nSpeaker: Emmanuel Abbé\, EPFL\, Institute of Mathematics and School of Computer and Communication Sciences & Apple \nTitle: Dynamic reasoning \nAbstract: In the current AI landscape\, reasoning is frequently equated with the generation of intermediate “thinking traces”. However\, these traces are merely a mechanism\, not the ultimate objective.\nRelying solely on the presence of a trace can be deceptive\, as models often learn to mimic the format of reasoning while effectively overfitting to specific training distributions.\nTo build more robust and versatile reasoners\, we shift our focus to more specific structural properties of the thinking process\, in particular compositionality (inductive CoT\, AdaBack) and abstraction (AbstRaL). URL:https://cmsa.fas.harvard.edu/event/newtech_31826-2/ LOCATION:Virtual CATEGORIES:New Technologies in Mathematics Seminar ATTACH;FMTTYPE=image/png:https://cmsa.fas.harvard.edu/media/CMSA-NTM-Seminar-3.18.2026.docx-1-scaled.png END:VEVENT BEGIN:VEVENT DTSTART;TZID=America/New_York:20260319T160000 DTEND;TZID=America/New_York:20260319T170000 DTSTAMP:20260501T213601 CREATED:20260127T192620Z LAST-MODIFIED:20260310T190851Z UID:10003882-1773936000-1773939600@cmsa.fas.harvard.edu SUMMARY:Moduli of subcanonical points DESCRIPTION:Algebra Seminar \nSpeaker: Dawei Chen\, Boston College \nTitle: Moduli of subcanonical points \nAbstract: Subcanonical points are special Weierstrass points on smooth algebraic curves whose semigroups are symmetric. In this talk\, I will explain the rich geometry of the moduli space of subcanonical points\, with a focus on its connected components\, birational geometry\, topology\, and the deformation theory of related monomial singularities. URL:https://cmsa.fas.harvard.edu/event/algebra-seminar_31926/ LOCATION:CMSA Room G10\, CMSA\, 20 Garden Street\, Cambridge\, MA\, 02138\, United States CATEGORIES:Algebra Seminar ATTACH;FMTTYPE=image/png:https://cmsa.fas.harvard.edu/media/CMSA-Algebra-Seminar-3.19.26.docx-scaled.png END:VEVENT BEGIN:VEVENT DTSTART;TZID=America/New_York:20260324T161500 DTEND;TZID=America/New_York:20260324T180000 DTSTAMP:20260501T213601 CREATED:20260323T143256Z LAST-MODIFIED:20260323T143854Z UID:10003919-1774368900-1774375200@cmsa.fas.harvard.edu SUMMARY:Line operators in holomorphic QFT DESCRIPTION:Joint Math/CMSA Geometry and Quantum Theory Seminar \nSpeaker: Keyou Zeng (CMSA) \nTitle: Line operators in holomorphic QFT \nAbstract: We will discuss the recent work (arxiv:2508.11749)\, which defines the so called dg shifted Yangian. I will discuss their origin from the study of 3d holomorphic topological field theories\, a variant of 3d TQFT. A dg shifted Yangian is supposed to control the fusion of line defect in the corresponding 3d HT theories. I will illustrate these discussions in examples. URL:https://cmsa.fas.harvard.edu/event/quantumgeo_32426/ LOCATION:Science Center 507\, 1 Oxford Street\, Cambridge\, 02138 CATEGORIES:Geometry and Quantum Theory Seminar ATTACH;FMTTYPE=image/png:https://cmsa.fas.harvard.edu/media/Geometry-and-Quantum-Theory-Seminar-03.24.26-scaled.png END:VEVENT BEGIN:VEVENT DTSTART;TZID=America/New_York:20260326T133000 DTEND;TZID=America/New_York:20260326T143000 DTSTAMP:20260501T213601 CREATED:20260323T144545Z LAST-MODIFIED:20260324T172207Z UID:10003921-1774531800-1774535400@cmsa.fas.harvard.edu SUMMARY:Gauge theory on Hyperkähler manifolds DESCRIPTION:Differential Geometry and Physics Seminar \nSpeaker. Emily Autumn Windes (New Uzbekistan University) \nTitle: Gauge theory on Hyperkähler manifolds \nAbstract: In this talk\, I describe various distinguished classes of connections on Hyperkähler manifolds and their dimensional reductions. Then\, I describe a construction of new examples of Sp(2)-instantons\, primitive HYM connections\, and Spin(7)-instantons with symmetry on the manifold T*CP2. This talk is based on joint work with Jesse Madnick and Izar Alonso. URL:https://cmsa.fas.harvard.edu/event/dgphys_32627/ LOCATION:CMSA Room G10\, CMSA\, 20 Garden Street\, Cambridge\, MA\, 02138\, United States CATEGORIES:Differential Geometry and Physics Seminar ATTACH;FMTTYPE=image/png:https://cmsa.fas.harvard.edu/media/DG-Physics-Seminar-3.26.26.docx-1.png END:VEVENT BEGIN:VEVENT DTSTART;TZID=America/New_York:20260326T160000 DTEND;TZID=America/New_York:20260326T170000 DTSTAMP:20260501T213601 CREATED:20260127T192705Z LAST-MODIFIED:20260310T192236Z UID:10003883-1774540800-1774544400@cmsa.fas.harvard.edu SUMMARY:The Beilinson-Bloch conjecture for some non-isotrivial varieties over global function fields DESCRIPTION:Algebra Seminar \nSpeaker: Matt Broe\, Boston University \nTitle: The Beilinson-Bloch conjecture for some non-isotrivial varieties over global function fields \nAbstract: The Beilinson-Bloch conjecture is a generalization of the Birch and Swinnerton-Dyer conjecture\, which relates the ranks of Chow groups of smooth projective varieties over global fields to the order of vanishing of L-functions. We prove the conjecture for certain classes of non-isotrivial varieties over Fq(t)\, including some cubic threefolds and fivefolds. We deduce the Birch and Swinnerton-Dyer conjecture for their intermediate Jacobians\, and use it to establish new cases of the Tate conjecture over finite fields. \n  URL:https://cmsa.fas.harvard.edu/event/algebra-seminar_32626/ LOCATION:CMSA Room G10\, CMSA\, 20 Garden Street\, Cambridge\, MA\, 02138\, United States CATEGORIES:Algebra Seminar ATTACH;FMTTYPE=image/png:https://cmsa.fas.harvard.edu/media/CMSA-Algebra-Seminar_3.26.26.docx-scaled.png END:VEVENT BEGIN:VEVENT DTSTART;TZID=America/New_York:20260327T150000 DTEND;TZID=America/New_York:20260327T171500 DTSTAMP:20260501T213601 CREATED:20260323T145751Z LAST-MODIFIED:20260323T194752Z UID:10003922-1774623600-1774631700@cmsa.fas.harvard.edu SUMMARY:Exotic R^4's are unclassifiable DESCRIPTION:Freedman Seminar \nSpeaker: Robert Gompf\, UT Austin \nTitle: Exotic R^4’s are unclassifiable \nAbstract: We will use descriptive set theory to show that there is a precise sense in which exotic R^4’s are unclassifiable. For other open manifolds\, we can reach a much higher level of unclassifiability. This is work in progress with Aristotelis Panagiotopoulos. URL:https://cmsa.fas.harvard.edu/event/freedman_32726/ LOCATION:Virtual CATEGORIES:Freedman Seminar ATTACH;FMTTYPE=image/png:https://cmsa.fas.harvard.edu/media/CMSA-Freedman-Seminar-3.27.26-scaled.png END:VEVENT BEGIN:VEVENT DTSTART;TZID=America/New_York:20260330T150000 DTEND;TZID=America/New_York:20260330T160000 DTSTAMP:20260501T213601 CREATED:20260126T190411Z LAST-MODIFIED:20260325T163011Z UID:10003879-1774882800-1774886400@cmsa.fas.harvard.edu SUMMARY:K-theoretic stable envelopes\, quantum loop groups and wall-crossings DESCRIPTION:Quantum Field Theory and Physical Mathematics Seminar \nSpeaker: Tianqin Zhu\, Columbia University \nTitle: K-theoretic stable envelopes\, quantum loop groups and wall-crossings \nAbstract: The stable envelope is an important tool in both geometric representation theory and the enumerative geometry. One of the most important application is that it generates the geometric quantum loop group via the FRT formalism. In this talk\, we will show that the geometric quantum loop group is isomorphic to the Drinfeld double given by the preprojective K-theoretic Hall algebra and the nilpotent K-theoretic Hall algebra. Moreover we will show a more refined result that the wall-crossing for the K-theoretic stable envelope is controlled by the universal R-matrix for the slope subalgebra of the Drinfeld double\, which leads to the isomorphism between the wall subalgebra in geometric quantum loop groups and the slope subalgebras in the Drinfeld double. If time permits\, I will talk about the recent progress of such isomorphism in the case of the critcial stable envelopes in both critical K-theory and critical cohomology. This is based on the work 2511.02161 \n  URL:https://cmsa.fas.harvard.edu/event/qft_33026/ LOCATION:CMSA Room G10\, CMSA\, 20 Garden Street\, Cambridge\, MA\, 02138\, United States CATEGORIES:Quantum Field Theory and Physical Mathematics ATTACH;FMTTYPE=image/png:https://cmsa.fas.harvard.edu/media/CMSA-QFT-and-Physical-Mathematics-3.30.26.docx.png END:VEVENT BEGIN:VEVENT DTSTART;TZID=America/New_York:20260331T161500 DTEND;TZID=America/New_York:20260331T180000 DTSTAMP:20260501T213601 CREATED:20260323T144017Z LAST-MODIFIED:20260330T153340Z UID:10003920-1774973700-1774980000@cmsa.fas.harvard.edu SUMMARY:1-shifted Yangians from 1-shifted Lie bialgebras DESCRIPTION:Joint Math/CMSA Geometry and Quantum Theory Seminar \nSpeaker: Vasily Krylov\, Harvard \nTitle: 1-shifted Yangians from 1-shifted Lie bialgebras \nAbstract: In the previous talk\, Keyou explained that the fusion of line defects in 3d holomorphic–topological field theories is expected to be governed by so-called DG-shifted Yangians. Following arXiv:2503.08770\, I will present examples of such DG-shifted Yangians arising from 1-shifted Lie bialgebras. We will discuss both the classical and DG-shifted settings from a purely mathematical perspective. URL:https://cmsa.fas.harvard.edu/event/quantumgeo_33126/ LOCATION:Science Center 507\, 1 Oxford Street\, Cambridge\, 02138 CATEGORIES:Geometry and Quantum Theory Seminar ATTACH;FMTTYPE=image/png:https://cmsa.fas.harvard.edu/media/Geometry-and-Quantum-Theory-Seminar-03.31.26-scaled.png END:VEVENT END:VCALENDAR