Results 1 to 10 of about 25,152 (191)

Potential automorphy over CM fields [PDF]

open access: yes, 2022
Let $F$ be a CM number field. We prove modularity lifting theorems for regular $n$-dimensional Galois representations over $F$ without any self-duality condition.
Allen, Patrick B.   +9 more
core   +5 more sources

Heights and quadratic forms: on Cassels' theorem and its generalizations [PDF]

open access: yes, 2012
In this survey paper, we discuss the classical Cassels' theorem on existence of small-height zeros of quadratic forms over Q and its many extensions, to different fields and rings, as well as to more general situations, such as existence of totally ...
Fukshansky, Lenny
core   +2 more sources

Local-global principle for quadratic forms over fraction fields of two-dimensional henselian domains [PDF]

open access: yes, 2012
Let $R$ be a 2-dimensional normal excellent henselian local domain in which 2 is invertible and let $L$ and $k$ be respectively its fraction field and residue field.
Hu, Yong
core   +2 more sources

Quadratic forms and linear algebraic groups [PDF]

open access: yes, 2009
Topics discussed at the workshop Quadratic Forms and Linear Algebraic Groups included besides the algebraic theory of quadratic and Hermitian forms and their Witt groups several aspects of the theory of linear algebraic groups and homogeneous varieties ...
Harbater, David   +2 more
core   +1 more source

Rings and ideals parametrized by binary n-ic forms [PDF]

open access: yes, 2010
The association of algebraic objects to forms has had many important applications in number theory. Gauss, over two centuries ago, studied quadratic rings and ideals associated to binary quadratic forms, and found that ideal classes of quadratic rings ...
Wood, Melanie Matchett
core   +1 more source

Identities for field extensions generalizing the Ohno-Nakagawa relations [PDF]

open access: yes, 2015
In previous work, Ohno conjectured, and Nakagawa proved, relations between the counting functions of certain cubic fields. These relations may be viewed as complements to the Scholz reflection principle, and Ohno and Nakagawa deduced them as consequences
Cohen   +12 more
core   +5 more sources

A cohomological Hasse principle over two-dimensional local rings

open access: yes, 2016
Let $K$ be the fraction field of a two-dimensional henselian, excellent, equi-characteristic local domain. We prove a local-global principle for Galois cohomology with finite coefficients over $K$.
Hu, Yong
core   +1 more source

Descent and forms of tensor categories [PDF]

open access: yes, 2011
We develop a theory of descent and forms of tensor categories over arbitrary fields. We describe the general scheme of classification of such forms using algebraic and homotopical language, and give examples of explicit classification of forms.
Etingof, Pavel, Gelaki, Shlomo
core   +3 more sources

Octonion algebras over rings are not determined by their norms [PDF]

open access: yes, 2012
Answering a question of H. Petersson, we provide a class of examples of pair of octonion algebras over a ring having isometric norms.Comment: 8 ...
Gille, Philippe
core   +3 more sources

Remarks on the Milnor conjecture over schemes [PDF]

open access: yes, 2011
The Milnor conjecture has been a driving force in the theory of quadratic forms over fields, guiding the development of the theory of cohomological invariants, ushering in the theory of motivic cohomology, and touching on questions ranging from sums of ...
Auel, Asher
core  

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