Results 61 to 70 of about 238 (139)
Realizability of algebraic Galois extensions by strictly commutative ring spectra
We discuss some of the basic ideas of Galois theory for commutative S-algebras originally formulated by John Rognes. We restrict our attention to the case of finite Galois groups and to global Galois extensions.
Richter, Birgit +4 more
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Ideals and Maximal Commutative Subrings of Graded Rings [PDF]
This thesis is mainly concerned with the intersection between ideals and (maximal commutative) subrings of graded rings. The motivation for this investigation originates in the theory of C*-crossed product algebras associated to topological dynamical ...
Öinert, Johan
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Cálculo differencial no conmmutativo de algunas álgebras de tipo polinomial con bases PBW
In this work, we study the notion of differential calculus associated to an associative algebra, from its origin in manifolds geometry, to some generalizations in non commutative differential geometry.
Sarmiento Santiago, Cristian David
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These lecture notes are an introduction to several ideas and applications of noncommutative geometry. It starts with a not necessarily commutative but associative algebra which is thought of as the algebra of functions on some 'virtual noncommutative ...
Landi, Giovanni
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Joincompact Spaces, Continuous Lattices, and C*-algebras
Recent work in the ideal theory of commutative rings and that of C*-algebra is unified and generalized by first noting that these spaces are Lawson-closed subspaces of continuous lattices, equipped with the restriction of the lower topology.
Kopperman, Ralph +3 more
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Homotopy of operads and Grothendieck–Teichmüller groups
The Grothendieck-Teichmüller group was defined by Drinfeld in quantum group theory with insights coming from the Grothendieck program in Galois theory.
Fresse, Benoit, Benoit Fresse
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Quantum Gravity: A Primer for Philosophers. [PDF]
‘Quantum Gravity’ does not denote any existing theory: the field of quantum gravity is very much a ‘work in progress’. As you will see in this chapter, there are multiple lines of attack each with the same core goal: to find a theory that unifies, in ...
Rickles, Dean
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Noncommutative Geometry of Quantized Coverings
There are theories of coverings of $C^*$-algebras which can be included into a following list: coverings of commutative $C^*$-algebras, coverings of $C^*$-algebras of groupoids and foliations, coverings of noncommutative tori, the double covering of the ...
Ivankov, Petr
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Noncomplex methods in real Banach algebras
The principal result is a new proof, independent of complex function theory, that the spectrum of any element of a real Banach algebra is nonempty (Theorem III).
Oliver, H.William
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Ranges of bimodule projections and conditional expectations
THESIS 9629The algebraic theory of comer subrings introduced by Lam (as an abstraction of the properties of Peirce corners eRe of a ring R associated with an idempotent e E R) are investigated here in the context of Banach and C*-algebras.
Pluta, Robert
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