CMSA EVENTS
April 15, 2021 9:00 amIn this talk, I will discuss the global weak solutions to the isentropic system of gas dynamics: existence and non-uniqueness. In the first part, we generalized the renormalized techniques introduced...
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HARVARD-MIT-BU-BRANDEIS-NORTHEASTERN
April 15, 2021 4:30 pmI’ll discuss recent work using tropical techniques to find new rational cohomology classes in moduli spaces A_g of abelian varieties, building on previous joint work with Galatius and Payne on M_g. I...
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CMSA EVENTS
April 15, 2021 10:30 amQCD, the theory of the strong interactions, involves quarks interacting with non-Abelian gluon fields. This theory has many features that are difficult to impossible to see in conventional diagrammatic perturbation...
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NUMBER THEORY
April 14, 2021 3:00 pmWe will describe the notion of affine schemes and their modifications in the context of Arakelov geometry. Using geometry of numbers in infinite rank, we will study their cohomological properties....
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CMSA EVENTS
April 14, 2021 3:00 pmDespite over three hundred years of effort, no solutions exist for predicting when a general planetary configuration will become unstable. I will discuss our deep learning architecture (arxiv:2101.04117) which pushes...
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CMSA EVENTS
April 14, 2021 10:30 amIn this talk, I will discuss several issues related to thermoelectric transport, with application to topological invariants of chiral topological phases in two dimensions. In the first part of the...
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HARVARD-MIT ALGEBRAIC GEOMETRY
April 13, 2021 3:00 pmI will work on a Calabi-Yau 3-fold X which satisfies the Bogomolov-Gieseker conjecture of Bayer-Macr\`i-Toda for weak stability conditions, such as the quintic threefold. I will explain how wall-crossing with...
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MATHEMATICAL PICTURE LANGUAGE
April 13, 2021 10:00 amAfter giving a brief introduction to Membrane Theory and its matrix regularization, commenting on an inherent dynamical symmetry for all M-branes (the related “reconstruction-algebra” for M=1, strings, being the Virasoro algebra),...
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CMSA EVENTS
April 12, 2021 10:00 amI will describe two quantization scenarios. The first scenario involves the construction of a quantum trace map computing a link "invariant" (with possible wall-crossing behavior) for links L in a...
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ALGEBRAIC DYNAMICS
April 9, 2021 10:00 amCanonical heights are a standard tool of arithmetic dynamics over global fields. When studying families of dynamical systems, or systems over larger fields, however, there are significant geometric obstacles to...
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