Perlen-Kolloquium: Christian Krattenthaler (Universität Wien)

Cyclic sieving for generalised non-crossing partitions associated to complex reflection groups

Cyclic sieving is a(n enumerative) phenomenon formulated by Reiner, Stanton and White. Bessis and Reiner proposed two conjectures on cyclic sieving phenomena for the generalised non-crossing partitions associated to complex reflection groups of Armstrong and Bessis. I shall first explain what cyclic sieving and these generalised non-crossing partitions are about, and then report the main ideas of a proof of the above two conjectures. Part of this work is in collaboration with Thomas Müller. 

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