RICHARD P. STANLEY SEMINAR IN COMBINATORICS
SEMINARS, HARVARD-MIT COMBINATORICS
December 6, 2023 4:15 pmAbstract TBA For more details, see https://math.mit.edu/combin/
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SEMINARS, HARVARD-MIT COMBINATORICS
December 6, 2023 4:15 pmAbstract TBA For more details, see https://math.mit.edu/combin/
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SEMINARS, HARVARD-MIT COMBINATORICS
December 1, 2023 3:00 pmIn 1973, Lemmens and Seidel posed the problem of determining the maximum number of equiangular lines in R^r with angle arccos(alpha) and gave a partial answer in the regime r...
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SEMINARS, HARVARD-MIT COMBINATORICS
November 29, 2023 4:15 pmDiscrete Morse theory, developed by Forman, is an efficient tool to determine the homotopy type of a regular CW complex. The theory has been reformulated by Chari in purely combinatorial...
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SEMINARS, HARVARD-MIT COMBINATORICS
November 17, 2023 3:00 pmSuppose that we only see small “k x k snapshots” of a random two-dimensional “n x n picture”: can we piece the original picture back together? Motivated by the one-dimensional...
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SEMINARS, HARVARD-MIT COMBINATORICS
November 15, 2023 4:15 pmDiscrete Morse theory, developed by Forman, is an efficient tool to determine the homotopy type of a regular CW complex. The theory has been reformulated by Chari in purely combinatorial...
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SEMINARS, HARVARD-MIT COMBINATORICS
November 8, 2023 4:15 pmGiven n-3 subsets of {1, …, n} of size 4, the cross-ratio degree counts the number of ways to place n marked points on the Riemann sphere such that the...
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SEMINARS, HARVARD-MIT COMBINATORICS
November 3, 2023 3:00 pmTranslational tiling is a covering of a space (such as Euclidean space) using translated copies of one building block, called a "translational tile'', without any positive measure overlaps. Can we...
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SEMINARS, HARVARD-MIT COMBINATORICS
November 1, 2023 4:15 pmDeligne connects the weight-zero compactly supported cohomology of a moduli space to the combinatorics of its compactifications. This gives a method for using combinatorics to compute a piece of the...
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SEMINARS, HARVARD-MIT COMBINATORICS
October 27, 2023 3:00 pmIf a set of integers is syndetic (finitely many translates cover the integers), must it contain two integers whose ratio is a square? No one knows. In the broader context...
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SEMINARS, HARVARD-MIT COMBINATORICS
October 25, 2023 4:15 pmWe organize a number of analytic and combinatorial properties of Boolean functions into a hierarchy of equivalence classes in a similar style as quasi-random graphs, but depending on 'local' parameters....
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