The closure of the set of periodic modules over a concealed canonical algebra is regular in codimension one

2016/12/29 by Bobinski, Grzegorz, Zwara, Grzegorz
#14B05 #14L30 #16G20 #FOS: Mathematics #Representation Theory (math.RT)

paper · doi:10.48550/arxiv.1612.09164

Abstract

Let A be a concealed canonical algebra and d the dimension vector of an A-module which is periodic respect to the action of the Auslander-Reiten translation In the paper, we investigate the union of the closures of the orbits of the periodic A-modules of dimension vector d. We show that this set is closed and regular in codimension one.

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