Simple ambiskew polynomial rings

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Simple ambiskew polynomial rings

Jordan, David A.; Wells, Imogen E.

Journal of algebra, 05/2013, Volume: 382

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We determine simplicity criteria in characteristics 0 and p for a ubiquitous class of iterated skew polynomial rings in two indeterminates over a base ring. One obstruction to simplicity is the possible existence of a canonical normal element z. In the case where this element exists we give simplicity criteria for the rings obtained by inverting z and the rings obtained by factoring out the ideal generated by z. The results are illustrated by numerous examples including higher quantized Weyl algebras and generalizations of some low-dimensional symplectic reflection algebras.

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Jordan, David A. | Wells, Imogen E.

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