SEMINARS, CMSA EVENTS
November 2, 2022 12:45 pmSemiconductor bilayer heterostructures provide a remarkable platform for simulating Hubbard models on an emergent lattice defined by moire potential minima. As a hallmark of Hubbard model physics, the Mott insulator...
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SEMINARS, CMSA EVENTS
November 1, 2022 9:00 amAlthough the equations of motion that govern quantum mechanics are well-known, understanding the emergent macroscopic behavior that arises from a particular set of microscopic interactions remains remarkably challenging. One particularly...
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SEMINARS, CMSA EVENTS
October 28, 2022 9:30 amI will outline the construction of a 2-category associated to a hyperKahler moment map. The construction is based on partial differential equations in one, two and three dimensions, combined with...
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SEMINARS, CMSA EVENTS
October 26, 2022 9:00 amThe notion of topological phases has dramatically changed our understanding of insulators. There is much to learn about a band insulator beyond the assertion that it has a gap separating...
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SEMINARS, CMSA EVENTS
October 26, 2022 2:00 pmSpeakers: João Araújo (Mathematics Department, Universidade Nova de Lisboa) and Michael Kinyon (Department of Mathematics, University of Denver) Bill McCune produced the program EQP that deals with first order logic...
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SEMINARS, CMSA EVENTS
October 26, 2022 12:30 pmA k-clique in a graph G is a subgraph of G on k vertices in which every pair of vertices is linked by an edge. Cliques are a natural notion...
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SEMINARS, CMSA EVENTS
October 25, 2022 9:00 amIn two dimensions, one can study quantum field theories on unorientable manifolds by introducing crosscaps. This defines a class of states called crosscap states which share a few similarities with the...
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SEMINARS, CMSA EVENTS
October 21, 2022 9:30 amI'll introduce the higher-rank Donaldson--Thomas theory for toric Calabi--Yau threefolds, within the setting of equivariant K-theory. I'll present a factorization conjecture motivated by Physics. As a byproduct, I'll discuss some novel properties of...
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SEMINARS, CMSA EVENTS
October 21, 2022 11:00 amRamsey showed that any graph on N nodes contains a clique or independent set of size (log N)/2. Erdos showed that there exist graphs on N nodes with no clique...
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SEMINARS, CMSA EVENTS
October 20, 2022 12:00 pmSome of the most dramatic events during human development is the axial elongation of the embryo with concomitant changes in the geometry and composition of the underlying tissues. The posterior part of...
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