Results 1 to 10 of about 104 (97)

On generic G-graded Azumaya algebras [PDF]

open access: yesAdvances in Mathematics, 2022
Let $F$ be an algebraically closed field of characteristic zero and let $G$ be a finite group. Consider $G$-graded simple algebras $A$ which are finite dimensional and $e$-central over $F$, i.e. $Z(A)_{e} := Z(A)\cap A_{e} = F$. For any such algebra we construct a \textit{generic} $G$-graded algebra $\mathcal{U}$ which is \textit{Azumaya} in the ...
Yakov Karasik, Eli Aljadeff
exaly   +4 more sources

Homology of Azumaya algebras [PDF]

open access: yesProceedings of the American Mathematical Society, 1994
If R is a commutative k -algebra, any Azumaya R -algebra has the same Hochschild homology as R does.
Cortiñas, G., Weibel, C.
openaire   +1 more source

Azumaya Algebras and Canonical Components [PDF]

open access: yesInternational Mathematics Research Notices, 2020
AbstractLet $M$ be a compact 3-manifold and $\Gamma =\pi _1(M)$. Work by Thurston and Culler–Shalen established the ${\operatorname{\textrm{SL}}}_2({\mathbb{C}})$ character variety $X(\Gamma )$ as fundamental tool in the study of the geometry and topology of $M$.
Chinburg, Ted   +2 more
openaire   +2 more sources

Involutions of Azumaya Algebras

open access: yesDocumenta Mathematica, 2020
We consider the general circumstance of an Azumaya algebra A of degree n over a locally ringed topos (\mathbf{X}, \mathcal
First, Uriya A., Williams, Ben
openaire   +2 more sources

Azumaya algebras without involution [PDF]

open access: yesJournal of the European Mathematical Society, 2018
Generalizing a theorem of Albert, Saltman showed that an Azumaya algebra A over a ring represents a 2-torsion class in the Brauer group if and only if there is an algebra A’
Auel, Asher   +2 more
openaire   +2 more sources

Decomposition of topological Azumaya algebras [PDF]

open access: yesCanadian Mathematical Bulletin, 2021
AbstractLet $\mathscr {A}$ be a topological Azumaya algebra of degree $mn$ over a CW complex X. We give conditions for the positive integers m and n, and the space X so that $\mathscr {A}$ can be decomposed as the tensor product of topological Azumaya algebras of degrees m and n.
openaire   +3 more sources

Azumaya Monads and Comonads

open access: yesAxioms, 2015
The definition of Azumaya algebras over commutative rings \(R\) requires the tensor product of modules over \(R\) and the twist map for the tensor product of any two \(R\)-modules.
Bachuki Mesablishvili, Robert Wisbauer
doaj   +1 more source

Weakly Azumaya Algebras

open access: yesJournal of Algebra, 2002
The authors generalize the notions of weak crossed products and Azumaya algebras under the class title ``weakly Azumaya algebras''. Among their results is a Wedderburn principal theorem (in the case where the center is a field). Their new monoid (which actually generalizes the Brauer group) is a union of groups they call ``stalks'', in each of which ...
Haile, Darrell, Rowen, Louis
openaire   +1 more source

Separable subalgebras of a class of Azumaya algebras

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1998
Let S be a ring with 1, C the center of S, G a finite automorphism group of S of order n invertible in S, and SG the subnng of elements of S fixed under each element in G. It is shown that the skew group ring S*G is a G′-Galois extension of (S*G)G′ that
George Szeto
doaj   +1 more source

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