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On differentially smoothness of certain Artin-Schelter regular algebras of dimension 5 (2507.10853v1)
Published 14 Jul 2025 in math.RA and math.DG
Abstract: This article investigates the differential smoothness of various five-dimensional Artin-Schelter regular algebras. By analyzing the relationship between the number of generators and the Gelfand-Kirillov dimension, we provide structural obstructions to differential smoothness in specific algebraic families. In particular, we prove that certain two- and four-generator AS-regular algebras of global dimension five fail to admit a differential calculus, while a five-generator graded Clifford algebra provides a contrasting positive example.
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