Results 71 to 80 of about 50,694 (192)
Self-duality from twisted cohomology
Journal of High Energy PhysicsRecently a notion of self-duality for differential equations of maximal cuts was introduced, which states that there should be a basis in which the matrix for an ε-factorised differential equation is persymmetric.
Claude Duhr +3 more
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Universal Spaces for Unramified Galois Cohomology [PDF]
, 2017 We construct and study universal spaces for birational invariants of algebraic varieties over algebraic closures of finite fields.
Bogomolov, Fedor, Tschinkel, Yuri
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Cyclic cohomology after the excision theorem of Cuntz and Quillen [PDF]
, 2013 The excision theorem of Cuntz and Quillen established the existence of a six term exact sequence in the bivariant periodic cyclic cohomology HP*(–,–) associated with an arbitrary algebra extension 0 ? S ? P ? Q ? 0.
Jacek Brodzki, Brodzki, Jacek
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, 2023 Abstract We recast the Galois cohomology of the variety V over a number field k in terms of the K-theory of a C*-algebra A_V connected to V. It is proved that V is isomorphic to V' over k (algebraic closure of k, resp.) if and only if A_V is isomorphic (Morita equivalent, resp.) to A_V' In particular, the Morita equivalent C*-algebras
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Equivariant Riemann-Roch theorems for curves over perfect fields
, 2008 We prove an equivariant Riemann-Roch formula for divisors on algebraic curves over perfect fields. By reduction to the known case of curves over algebraically closed fields, we first show a preliminary formula with coefficients in Q.
Koeck, Bernhard +3 more
core +1 more source
Computing the equivariant Euler characteristic of Zariski and étale sheaves on curves
, 2005 We prove an equivariant Grothendieck-Ogg-Shafarevich formula. This formula may be viewed as an étale analogue of well-known formulas for Zariski sheaves generalizing the classical Chevalley-Weil formula.
Koeck, Bernhard
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Classifying multiplets of totally real cubic fields [PDF]
Electronic Journal of Mathematics, 2021 Daniel C. Mayer
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Classification of Quantum Groups via Galois Cohomology [PDF]
, 2019 The first example of a quantum group was introduced by P.\ua0Kulish and N.\ua0Reshetikhin. In the paper Kulish et\ua0al. (J Soviet Math 23:2435–2441, 1983), they found a new algebra which was later called Uq(sl(2)).
Karolinsky, E. +7 more
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Poisson and Hochschild cohomology and the semiclassical limit [PDF]
, 2013 Let $B$ be a quantum algebra possessing a semiclassical limit $A$. We show that under certain hypotheses $B^e$ can be thought of as a deformation of the Poisson enveloping algebra of $A$, and we give a criterion for the Hochschild cohomology of $B$ to
Towers, Matthew
core
F-structures and Bredon-Galois cohomology
Appl. Categorical Struct., 2011 39 ...
Dieter Degrijse, Nansen Petrosyan
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