CMSA GENERAL RELATIVITY SEMINAR, SEMINARS
March 17, 2022 9:00 amDeep neural networks have achieved significant empirical success in many fields, including the fields of computer vision and natural language processing. Along with its empirical success, deep learning has been theoretically shown to be...
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CMSA GENERAL RELATIVITY SEMINAR, SEMINARS
March 16, 2022 10:30 amSome recent work in the quantum gravity literature has considered what happens when the amplitudes of a TQFT are summed over the bordisms between fixed in-going and out-going boundaries. We will comment on these...
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CMSA GENERAL RELATIVITY SEMINAR, SEMINARS
March 15, 2022 9:30 amIt is by now well-known that mirror symmetry may be expressed as an equivalence between categories associated to dual Kahler manifolds. Following a proposal of Teleman, we inaugurate a program...
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CMSA GENERAL RELATIVITY SEMINAR, SEMINARS
March 15, 2022 9:00 amI will first review the construction of the moduli space of tropical curves (or metric graphs), and its relation to graph complexes. The graph Laplacian may be interpreted as a...
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CMSA GENERAL RELATIVITY SEMINAR, SEMINARS
March 10, 2022 9:30 amWe consider the Cauchy problem for the Einstein equations for cosmological spacetimes, i.e. spacetimes with compact spatial hypersurfaces. Various classes of those dynamical spacetimes have been constructed and analyzed using...
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CMSA GENERAL RELATIVITY SEMINAR, SEMINARS
March 10, 2022 9:00 amThe gig economy provides workers with the benefits of autonomy and flexibility, but it does so at the expense of work identity and co-worker bonds. Among the many reasons why...
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CMSA GENERAL RELATIVITY SEMINAR, SEMINARS
March 10, 2022 8:00 pmWe present computations of the thermal Hall coefficient of phonons scattering off defects with multiple energy levels. Using a microscopic formulation based on the Kubo formula, we find that the...
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CMSA GENERAL RELATIVITY SEMINAR, SEMINARS
March 9, 2022 9:30 amThe low dimensional manifold hypothesis posits that the data found in many applications, such as those involving natural images, lie (approximately) on low dimensional manifolds embedded in a high dimensional Euclidean...
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CMSA GENERAL RELATIVITY SEMINAR, SEMINARS
March 9, 2022 2:00 pmWe automatically solve, explain, and generate university-level course problems from thirty STEM courses (at MIT, Harvard, and Columbia) for the first time. We curate a new dataset of course questions...
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CMSA GENERAL RELATIVITY SEMINAR, SEMINARS
March 9, 2022 10:30 amMotivated by a puzzle arising from recent work on staggered lattice fermions we introduce Kaehler-Dirac fermions and describe their connection both to Dirac fermions and staggered fermions. We show that they...
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