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Gradings and graded linear maps on algebras

  • Antonio Ioppolo and Fabrizio Martino EMAIL logo
Published/Copyright: August 5, 2024

Abstract

Let A be a superalgebra over a field F of characteristic zero. We prove tight relations between graded automorphisms, pseudoautomorphisms, superautomorphisms and K-gradings on A, where K is the Klein group. Moreover, we investigate the consequences of such connections within the theory of polynomial identities. In the second part we focus on the superalgebra U T n ( F ) of n × n upper triangular matrices by completely classifying the graded-pseudo-super automorphism that one can define on it. Finally, we compute the ideals of identities of U T n ( F ) endowed with a graded or a pseudo automorphism, for any n, and the ideals of identities with superautomorphism in the cases n = 2 and n = 3 .

MSC 2020: 16W50; 17B40; 16R10

Communicated by Freydoon Shahidi


Funding statement: Antonio Ioppolo was supported by GNSAGA-INDAM and Progetti di Ateneo 2023, UNIVAQ. Fabrizio Martino was supported by GNSAGA-INDAM.

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Received: 2024-02-23
Revised: 2024-07-09
Published Online: 2024-08-05
Published in Print: 2025-06-01

© 2024 Walter de Gruyter GmbH, Berlin/Boston

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