The completely separating incidence algebras of tame representation type
Volume 94 / 2002
Colloquium Mathematicum 94 (2002), 243-262
MSC: 16G20, 16G60, 16G70.
DOI: 10.4064/cm94-2-7
Abstract
We prove that a completely separating incidence algebra of a partially ordered set is of tame representation type if and only if the associated Tits integral quadratic form is weakly non-negative.