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math.AG2015★ 9 cited
Formal confluence of quantum differential operators
Bernard Le Stum, Adolfo Quirós
We prove that a usual differential operator is formally the limit of quantum differential operators. For this purpose, we introduce the notion of twisted differential operator of i…
math.AG2015
Twisted calculus
Bernard Le Stum, Adolfo Quirós
A twisted ring is a ring endowed with a family of endomorphisms satisfying certain relations. One may then consider the notions of twisted module and twisted differential module. W…