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Azumaya, semisimple and ideal algebras [PDF]
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Azumaya Algebras With Orthogonal Involution Admitting an Improper Isometry
Let $(A,σ)$ be an Azumaya algebra with orthogonal involution over a ring $R$ with $2\in R^\times$. We show that if $(A,σ)$ admits an improper isometry, i.e., an element $a\in A$ with $σ(a)a=1$ and $\mathrm{Nrd}_{A/R}(a)=-1$, then the Brauer class of $A ...
First, Uriya A.
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Residue maps, Azumaya algebras, and buildings [PDF]
The goal of this note is to give an explicit formula for the residues of twists of the matrix algebra in terms of the twisting cocycle. Combined with the Fixed Point Theorem for actions of finite groups on affine buildings, this leads to a quick proof of
Rapinchuk, Igor A.
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Derivations in Azumaya algebras
Roy, A., Sridharan, R.
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Group Rings which are Azumaya Algebras [PDF]
DeMeyer, F. R., Janusz, G. J.
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Spaces of Generators for Azumaya Algebras with Unitary Involution
Let $A$ be a finite dimensional algebra (possibly with some extra structure) over an infinite field $K$ and let $r\in\mathbb{N}$. The $r$-tuples $(a_1,\dots,a_r)\in A^r$ which fail to generate $A$ are the $K$-points of a closed subvariety $Z_r$ of the ...
First, Uriya A., Cantor, Omer
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Azumaya algebras over Hensel rings [PDF]
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Bulletin of the Malaysian Mathematical Sciences Society, 2015
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Xiaojiang Guo
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zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Xiaojiang Guo
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Semigroup algebras which are Azumaya algebras
Semigroup Forum, 2023The authors study Azumaya semigroup algebras and characterize semigroup algebras of a finite semigroup which are Azumaya. Here is one result. Let \(S\) be an almost idempotent-free semigroup and \(K\) a field satisfying the matrix condition. Then \(K_0 [S]\) is an Azumaya algebra if and only if \(K_0 [S]\) is isomorphic to some matrix algebra \(M_n ...
Xiaojiang Guo
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