CMSA Active Matter, SEMINARS, CMSA EVENTS
April 4, 2024 1:00 pmMaterials that increase in size offer intriguing possibilities for shape morphing applications. Here, we explore two such systems—swelling polyacrylamide hydrogels and expanding polyurethane foams. The hydrogels swell by absorbing water...
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SEMINARS, HARVARD-MIT COMBINATORICS
April 3, 2024 4:15 pmThe derived category of a variety is an important and difficult invariant. In this talk, I discuss a purely convex-geometric and combinatorial approach to these categories for toric varieties. Along...
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INFORMAL GEOMETRY AND DYNAMICS, SEMINARS
April 3, 2024 4:00 pmPlease see website for more details: www.math.harvard.edu/~ctm/sem.
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COLLOQUIUMS
April 3, 2024 3:00 pmA fundamental motivating problem in homotopy theory is the study of the stable homotopy groups of spheres. The mathematical object that binds stable homotopy groups together is a spectrum. In...
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SEMINARS, HARVARD-MIT ALGEBRAIC GEOMETRY
April 2, 2024 4:30 pmJoint with the MIT number theory seminar, note the special time and location When does a nice curve $X$ over a number field $k$ have infinitely many closed points of...
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SEMINARS, HARVARD-MIT ALGEBRAIC GEOMETRY
April 2, 2024 3:00 pmClassical Schubert calculus analyzes the geometry of the flag variety, namely the space of nested subspaces $V_1 \subseteq V_2 \subseteq \cdots \subseteq \mathbb{C}^n$, asking enumerative questions about intersections of linear...
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CMSA GENERAL RELATIVITY SEMINAR, CMSA EVENTS
April 2, 2024 11:00 amExpanding the work of arXiv:1504.08040, we show that black holes obey a second law for linear perturbations to bifurcate Killing horizons, in any covariant higher curvature gravity coupled to scalar...
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SEMINARS
April 2, 2024 1:30 pmAbstract TBA
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PROBABILITY, SEMINARS
April 2, 2024 1:30 pmThe eigenvalues of a uniformly distributed unitary matrix have the physical interpretation of a system of particles subject to a logarithmic pair interaction, restricted to lie on the unit circle...
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CMSA COLLOQUIUM, CMSA EVENTS
April 1, 2024 4:30 pm**CANCELED** Societal accumulation of knowledge is a complex, and arguably error-prone, process. The correctness of new units of knowledge depends not only on the correctness of the new reasoning, but...
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