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cs.SC2018★ 8 cited
Desingularization in the -Weyl algebra
Christoph Koutschan, Yi Zhang
In this paper, we study the desingularization problem in the first -Weyl algebra. We give an order bound for desingularized operators, and thus derive an algorithm for computing…
cs.SC2017★ 3 cited
Univariate Contraction and Multivariate Desingularization of Ore Ideals
Yi Zhang
Ore operators with polynomial coefficients form a common algebraic abstraction for representing D-finite functions. They form the Ore ring , where is the constant fi…