Gauge Theory and Topology Seminar, SEMINARS
February 10, 2023 3:30 pmHeegaard Floer homology is an invariant of 3-manifolds, and knots and links within them, introduced by P. Oszváth and Z. Szabó in the early 2000s. Because of its relative computability...
Read more
SEMINARS, CMSA EVENTS
February 10, 2023 10:30 amQuantum systems in 3+1-dimensions that are invariant under gauging a one-form symmetry enjoy novel non-invertible duality symmetries encoded by topological defects. These symmetries are renormalization group invariants which constrain infrared...
Read more
CMSA EVENTS
February 9, 2023 3:30 pmThe CMSA will host a series of three 90-minute lectures on the subject of machine learning for protein folding. Thursday, Feb 9, 2023: 3:30–5:00 pm ET Thursday, Feb 16,...
Read more
SEMINARS, CMSA EVENTS
February 9, 2023 1:30 pmQuasinormal modes of gravitational waves and Ruelle resonances in hyperbolic classical dynamics share many general properties and can be considered "scattering resonances": they appear in expansions of correlations, as poles of Green functions and...
Read more
INFORMAL GEOMETRY AND DYNAMICS, SEMINARS
February 8, 2023 4:00 pmThis seminar will be held in Science Center 530 at 4:00pm on Wednesday, February 8th. Please see the seminar page for more details: https://www.math.harvard.edu/~ctm/sem
Read more
SEMINARS, CMSA EVENTS
February 8, 2023 3:30 pmI will discuss an approach to log-Sobolev inequalities that combines the Bakry-Emery theory with renormalisation and present several applications. These include log-Sobolev inequalities with polynomial dependence for critical Ising models...
Read more
SEMINARS, NUMBER THEORY
February 8, 2023 3:00 pmTitle: TBA Abstract: TBA
Read more
SEMINARS, NUMBER THEORY
February 8, 2023 3:00 pmElliptic curves E over the rational numbers are modular: this means there is a nonconstant map from a modular curve to E. When instead the coefficients of E belong to...
Read more
SEMINARS, CMSA EVENTS
February 8, 2023 12:30 pmMany decision and optimization problems over random structures exhibit an apparent gap between the existentially optimal values and algorithmically achievable values. Examples include the problem of finding a largest independent...
Read more
SEMINARS, HARVARD-MIT ALGEBRAIC GEOMETRY
February 7, 2023 3:00 pmIn this talk, I will discuss the behavior of positivity, hyperbolicity, and Kodaira dimension under smooth morphisms of complex quasi-projective manifolds. This includes a vast generalization of a classical result:...
Read more