Quantum Field Theory and Physical Mathematics
CMSA Room G10 CMSA, 20 Garden Street, Cambridge, MA, United StatesQuantum Field Theory and Physical Mathematics Seminar
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Thinking Outside the Ballot Box
CMSA Room G10 CMSA, 20 Garden Street, Cambridge, MA, United StatesColloquium Speaker: Ariel Procaccia, Harvard University Title: Thinking Outside the Ballot Box Abstract: How should one design unprecedented democratic processes capable of handling enormous sets of alternatives like all possible policies, bills, or statements? I argue that this challenge can be addressed through a framework called generative social choice, which fuses the rigor of social choice theory […]
Geometry and Quantum Theory Seminar
Science Center 507 1 Oxford Street, CambridgeGeometry and Quantum Theory Seminar
Residues and homotopy Lie algebras
VirtualMathematical Physics and Algebraic Geometry Seminar Speaker: Zhenping Gui, Shanghai Institute for Mathematics and Interdisciplinary Sciences Title: Residues and homotopy Lie algebras Abstract: I will introduce the notion of a chiral operad for any compact Riemann surface. This operad consists of compositions of residue operations, which give rise to the Chevalley-Cousin complex and lead to the […]
Asset pricing with heterogeneous agents
CMSA Room G10 CMSA, 20 Garden Street, Cambridge, MA, United StatesMember Seminar Speaker: Sergiy Verstyuk, Harvard CMSA Title: Asset pricing with heterogeneous agents Abstract: This talk will introduce the basics of continuous-time finance, discuss important existing theories and models, as well as present some new asset pricing results in a setting with many heterogeneous investors. (Joint work with Puskar Mondal.)
An index for 2d invertible phases of quantum many-body systems
CMSA Room G10 CMSA, 20 Garden Street, Cambridge, MA, United StatesQuantum Field Theory and Physical Mathematics Seminar Speaker: Nikita Sopenko, IAS Title: An index for 2d invertible phases of quantum many-body systems
Factorizations for data analysis
CMSA Room G10 CMSA, 20 Garden Street, Cambridge, MA, United StatesColloquium Speaker: Anna Seigal, Harvard University Title: Factorizations for data analysis Abstract: We can find structure in data by factoring it into building blocks, which should be interpretable for the context at hand. A classical example is principal component analysis (PCA), which uses the eigendecomposition of the covariance matrix to find axes of variation in a dataset. Starting from […]
Report on the Perimeter Institute Theory+AI Workshop
CMSA 20 Garden Street Cambridge, Massachusetts 02138 United StatesConference Reports Speaker: Hugo Cui, Harvard CMSA Title: Report on the Perimeter Institute Theory+AI Workshop Abstract: I will give a survey and brief summary of some of the talks given at the Theory+AI Workshop: Theoretical Physics for AI event organized by Perimeter Institute in April, on approaches to machine learning theory inspired from physics. Link : https://events.perimeterinstitute.ca/event/993/
Resurgence, number theory, and quantum mirror curves
CMSA Room G10 CMSA, 20 Garden Street, Cambridge, MA, United StatesMathematical Physics and Algebraic Geometry Seminar Speaker: Claudia Rella (IHES) Title: Resurgence, number theory, and quantum mirror curves Abstract: Resurgence provides a powerful toolbox to access the non-perturbative sectors hidden within the divergent asymptotic series of quantum theories. Under some special assumptions, the non-perturbative data extracted via resurgent methods possess intrinsic number-theoretic properties that are deeply […]
Echo Chamber: RL Post-training Amplifies Behaviors Learned in Pretraining
CMSA Room G10 CMSA, 20 Garden Street, Cambridge, MA, United StatesMember Seminar Speaker: Samy Jelassi, CMSA Title: Echo Chamber: RL Post-training Amplifies Behaviors Learned in Pretraining Abstract: Reinforcement Learning has become a crucial step in training state-of-the-art language models such as DeepSeek-R1 for solving mathematical problems. In this talk, I will first review the mechanisms of Reinforcement Learning fine-tuning. Then, I will present a systematic end-to-end […]
People at CMSA – May 19-23, 2025
CMSA 20 Garden Street Cambridge, Massachusetts 02138 United StatesFull Name Role Office # Affiliation Dates Email Address Amol Aggarwal Classical, Quantum, and Probabilistic Integrable Systems Program Organizer 203 Columbia University & Clay Mathematics Institute amolagga@gmail.com Guillaume Barraquand Classical, Quantum, and Probabilistic Integrable Systems Program Organizer 207 École normale supérieure, Paris guillaume.barraquand@ens.fr Denis Bernard Classical, Quantum, and Probabilistic Integrable Systems Program Organizer 207 École […]
Higher Gauge Theory and Integrability
VirtualMathematical Physics and Algebraic Geometry Seminar Speaker: Joaquin Liniado, Instituto de Física La Plata Title: Higher Gauge Theory and Integrability Abstract: Integrable field theories are remarkable for possessing an infinite number of conserved quantities, which often allow for their exact solvability. In two dimensions, this structure is elegantly captured by the existence of a Lax […]