Isomorphism classes and automorphism groups of algebras of Weyl type |
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Authors: | Yucai Su and Kaiming Zhao |
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Institution: | 1. Department of Mathematics, Shanghai Jiaotong University, Shanghai 200030, China 2. Institute of Mathematics, Academy of Mathematics and System Sciences, Chinese Academy of Sciences,Beijing 100080, China |
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Abstract: | In one of our recent papers, the associative and the Lie algebras of Weyl typeAD]=A⊗FD] were defined and studied, whereA is a commutative associative algebra with an identity element over a field F of any characteristic, and FD] is the polynomial algebra of a commutative derivation subalgebraD ofA. In the present paper, a class of the above associative and Lie algebrasAD] with F being a field of characteristic 0,D consisting of locally finite but not locally nilpotent derivations ofA, are studied. The isomorphism classes and automorphism groups of these associative and Lie algebras are determined |
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Keywords: | simple Lie algebra simple associative algebra derivation isomorphism class automorphism group |
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