CRM: Centro De Giorgi
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PISA-HOKKAIDO-ROMA2 Summer School on Mathematics and Its Applications 2018

communication: Combinatorics of discriminantal arrangement and Pappus’s theorem

speaker: So Yamagata (Department of Mathematics, Hokkaido University)

abstract: The discriminantal arrangement is defined by Manin-Schechtman in 1989 as a generalization of braid arrangement. The combinatorics (i.e., intersection lattice) of the discriminantal arrangement is not well-known. In my talking I will explain connection between combinatorics of discriminantal arrangement in codimension 2 and quadrics in Grassmannain. In particular this connection leads to an alternative statement and proof of Pappus’s theorem.


timetable:
Thu 30 Aug, 17:01 - 17:40, Sala Conferenze Centro De Giorgi
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