You are also welcome to join us on Zoom at: https://us02web.zoom.us/j/83337601824 Time: 14:00 Abstract: The dimension of the space of multilinear products of higher commutators is equal to the number of derangements, $[e^{-1}n!]$. Our search for a combinatorial explanation for this … Continue reading Colloquium: Tuesday, May 24, 2022. Speaker: Uzi Vishne (Bar-Ilan). Title: “Inclusion-exclusion, partial representations of semigroups, and nonassociative polynomials”.