Differential smoothness of affine Hopf algebras of Gelfand–Kirillov dimension two
Volume 139 / 2015
Colloquium Mathematicum 139 (2015), 111-119
MSC: 16S36, 58B32, 16T05.
DOI: 10.4064/cm139-1-6
Abstract
Two-dimensional integrable differential calculi for classes of Ore extensions of the polynomial ring and the Laurent polynomial ring in one variable are constructed. Thus it is concluded that all affine pointed Hopf domains of Gelfand–Kirillov dimension two which are not polynomial identity rings are differentially smooth.
