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arXiv 1902.05412math.RA
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关于hom-associative Weyl代数

On the hom-associative Weyl algebras

Per Bäck, Johan Richter

摘要:

第一(结合)Weyl代数在经典意义上是形式刚性的.在本文中,我们表明,然而,它可以在一个非平凡的方式被视为所谓的hom-结合代数,这种变形保持的性质,如交换器,而变形的其他人,如中心,幂结合,导子的集合,和一些交换关系。然后,我们表明,这种变形导致一个正式的变形相应的李代数成为所谓的hom-李代数,当使用交换子作为括号。我们还证明了任何两个纯同结合Weyl代数之间的所有同态实际上是同构。特别是,在这种情况下,所有的自同态都是自同构,因此证明了Dixlane猜想的同伦结合类似物成立。

英文摘要:

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.

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