Results 21 to 30 of about 6,650 (233)

ABELIAN $n$ -DIVISION FIELDS OF ELLIPTIC CURVES AND BRAUER GROUPS OF PRODUCT KUMMER & ABELIAN SURFACES

open access: yesForum of Mathematics, Sigma, 2017
Let $Y$ be a principal homogeneous space of an abelian surface, or a K3 surface, over a finitely generated extension of
ANTHONY VÁRILLY-ALVARADO, BIANCA VIRAY
doaj   +1 more source

Brauer theory for profinite groups

open access: yesJournal of Algebra, 2014
Brauer Theory for a finite group can be viewed as a method for comparing the representations of the group in characteristic 0 with those in prime characteristic. Here we generalize much of the machinery of Brauer theory to the setting of profinite groups.
MacQuarrie, John, Symonds, Peter
openaire   +4 more sources

Graded Brauer Groups.

open access: yescrll, 1964
Author's introduction: This paper arose out of the observation that the definition of a Clifford algebra as an invariant of a quadratic form is made awkward by the fact that the algebra corresponding to the orthogonal direct sum of two quadratic forms is not simply the tensor product of their separate Clifford algebras.
openaire   +2 more sources

The Brauer group and the Brauer–Manin set of products of varieties [PDF]

open access: yesJournal of the European Mathematical Society, 2014
Let X and Y be smooth and projective varieties over a field k finitely generated ...
Alexei N. Skorobogatov, Yuri G. Zarhin
openaire   +4 more sources

Boundedness of the p-primary torsion of the Brauer group of products of varieties

open access: yesForum of Mathematics, Sigma
Let k be a field finitely generated over its prime subfield. We prove that the quotient of the Brauer group of a product of varieties over k by the sum of the images of the Brauer groups of factors has finite exponent.
Alexei Skorobogatov, Alexander Petrov
doaj   +1 more source

Brauer groups and Néron class groups [PDF]

open access: yesInternational Journal of Number Theory, 2020
Let [Formula: see text] be a global field and let [Formula: see text] be a finite set of primes of [Formula: see text] containing the Archimedean primes. We generalize the duality theorem for the Néron [Formula: see text]-class group of an abelian variety [Formula: see text] over [Formula: see text] established previously by removing the requirement ...
openaire   +3 more sources

On the Trichoptera of Western Europe, with revisiting the Anisogamus and Sericostoma genera (Trichoptera) [PDF]

open access: yesOpuscula Zoologica Instituti Zoosystematici et Oecologici Universitatis Budapestinensis
In this paper on the Trichoptera of Western Europe, we describe four new species: Wormaldia atesina sp. nov., Hydropsyche loirensis sp. nov., Drusus mirus sp. nov. and Anisogamus cottius sp. nov. Our unfortunate combinations of Chaetopteryx kimera Oláh &
Oláh, János, Vinçon, Gilles
doaj   +1 more source

Prevention at work needed to curb the worldwide strong increase in knee replacement surgery for working-age osteoarthritis patients

open access: yesScandinavian Journal of Work, Environment & Health, 2020
In the upcoming decades, hospitals and clinics around the world face a steep rise in demand from patients seeking knee replacement surgery. An absolute increase in knee replacement surgery of 297% – to 57 893 procedures – is forecasted in The Netherlands
P Paul FM Kuijer, Alex Burdorf
doaj   +1 more source

Vanishing of Brauer groups of moduli stacks of stable curves

open access: yesForum of Mathematics, Sigma
We show that the cohomological Brauer groups of the moduli stacks of stable genus g curves over the integers and an algebraic closure of the rational numbers vanish for any $g\geq 2$ .
Sebastian Bartling, Kazuhiro Ito
doaj   +1 more source

A note on the Brauer group and the Brauer–Manin set of a product [PDF]

open access: yesBulletin of the London Mathematical Society, 2020
10 pages, 20190703/3e323ffe, to appear in the Bulletin of the London Mathematical ...
openaire   +3 more sources

Home - About - Disclaimer - Privacy