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On the hom-associative Weyl algebras
Mälardalen University, SWE.
Blekinge Institute of Technology, Faculty of Engineering, Department of Mathematics and Natural Sciences.ORCID iD: 0000-0003-3931-7358
2020 (English)In: Journal of Pure and Applied Algebra, ISSN 0022-4049, E-ISSN 1873-1376, Vol. 224, no 9, article id 106368Article in journal (Refereed) Published
Abstract [en]

The first (associative) Weyl algebra is formally rigid in the classical sense. In this paper, we show that it can however be formally deformed in a nontrivial way when considered as a so-called hom-associative algebra, and that this deformation preserves properties such as the commuter, while deforming others, such as the center, power associativity, the set of derivations, and some commutation relations. We then show that this deformation induces a formal deformation of the corresponding Lie algebra into what is known as a hom-Lie algebra, when using the commutator as bracket. We also prove that all homomorphisms between any two purely hom-associative Weyl algebras are in fact isomorphisms. In particular, all endomorphisms are automorphisms in this case, hence proving a hom-associative analogue of the Dixmier conjecture to hold true. © 2020 Elsevier B.V.

Place, publisher, year, edition, pages
Elsevier B.V. , 2020. Vol. 224, no 9, article id 106368
Keywords [en]
Dixmier conjecture, Formal hom-associative deformations, Formal hom-Lie deformations, Hom-associative Ore extensions, Hom-associative Weyl algebras
National Category
Algebra and Logic
Identifiers
URN: urn:nbn:se:bth-19317DOI: 10.1016/j.jpaa.2020.106368ISI: 000526412900010Scopus ID: 2-s2.0-85081039720OAI: oai:DiVA.org:bth-19317DiVA, id: diva2:1414853
Available from: 2020-03-16 Created: 2020-03-16 Last updated: 2020-04-30Bibliographically approved

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Richter, Johan

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