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Specht property for the algebra of upper triangular matrices of size two with a Taft’s algebra action
Published online by Cambridge University Press: 16 May 2022
Abstract
Let F be a field of characteristic zero, and let
$UT_2$
be the algebra of
$2 \times 2$
upper triangular matrices over F. In a previous paper by Centrone and Yasumura, the authors give a description of the action of Taft’s algebras
$H_m$
on
$UT_2$
and its
$H_m$
-identities. In this paper, we give a complete description of the space of multilinear
$H_m$
-identities in the language of Young diagrams through the representation theory of the hyperoctahedral group. We finally prove that the variety of
$H_m$
-module algebras generated by
$UT_2$
has the Specht property, i.e., every
$T^{H_m}$
-ideal containing the
$H_m$
-identities of
$UT_2$
is finitely based.
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- © The Author(s), 2022. Published by Cambridge University Press on behalf of The Canadian Mathematical Society
Footnotes
A. Estrada was partially supported by the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior—Brasil (CAPES)—Finance Code 001.
References
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