Results 91 to 100 of about 2,325,357 (271)

On nonassociative graded-simple algebras over the field of real numbers [PDF]

open access: yesarXiv, 2018
We extend the loop algebra construction for algebras graded by abelian groups to study graded-simple algebras over the field of real numbers (or any real closed field). As an application, we classify up to isomorphism the graded-simple alternative (nonassociative) algebras and graded-simple finite-dimensional Jordan algebras of degree 2.
arxiv  

Geometry of division rings [PDF]

open access: yesarXiv, 2022
We prove an analog of Belyi's theorem for the algebraic surfaces. Namely, any non-singular algebraic surface can be defined over a number field if and only it covers the complex projective plane with ramification at three knotted two-dimensional spheres.
arxiv  

New decidable fields of algebraic numbers [PDF]

open access: yesProceedings of the American Mathematical Society, 1979
A formally real field of algebraic numbers is constructed which has decidable elementary theory and does not have a real closed or p-adically closed subfield.
L. P. D. van den Dries   +1 more
openaire   +2 more sources

Ideal matrices. III. [PDF]

open access: yes, 1985
In this paper ideal matrices with respect to ideals in the maximal order of an algebraic number field are connected with the different of the field and with group matrices in the case of normal fields whose maximal order has a normal ...
Taussky, Olga
core  

Analytic curves in algebraic varieties over number fields

open access: yes, 2007
We establish algebraicity criteria for formal germs of curves in algebraic varieties over number fields and apply them to derive a rationality criterion for formal germs of functions, which extends the classical rationality theorems of Borel-Dwork and P\'
A Franchetta   +41 more
core   +5 more sources

The condition number associated with ideal lattices from odd prime degree cyclic number fields

open access: yesJournal of Mathematical Cryptology
The condition number of a generator matrix of an ideal lattice derived from the ring of integers of an algebraic number field is an important quantity associated with the equivalence between two computational problems in lattice-based cryptography, the ...
de Araujo Robson Ricardo
doaj   +1 more source

On the Tate Conjectures for Divisors on a Fibred Variety and on its Generic Scheme Fibre in the Case of Finite Characteristic

open access: yesМоделирование и анализ информационных систем, 2017
We investigate interrelations between the Tate conjecture for divisors on a fibred variety over a finite field and the Tate conjecture for divisors on the generic scheme fibre under the condition that the generic scheme fibre has zero irregularity. Let \(
Tatyana V. Prokhorova
doaj   +1 more source

A differential representation of cosmological wavefunctions

open access: yesJournal of High Energy Physics, 2022
Our understanding of quantum field theory rests largely on explicit and controlled calculations in perturbation theory. Because of this, much recent effort has been devoted to improve our grasp of perturbative techniques on cosmological spacetimes. While
Aaron Hillman, Enrico Pajer
doaj   +1 more source

Arithmetic of algebraic groups [PDF]

open access: yesarXiv, 2004
This thesis studies arithmetic of linear algebraic groups. It involves studying the properties of linear algebraic groups defined over global fields, local fields and finite fields, or more generally the study of the linear algebraic groups defined over the fields which admit arbitrary cyclic extensions.
arxiv  

Lattice index codes from algebraic number fields [PDF]

open access: yesInternational Symposium on Information Theory, 2015
Broadcasting K independent messages to multiple users where each user has a subset of the K messages as side information is studied. This problem can be regarded as a natural generalization of the well-known index coding problem to the physical-layer ...
Yu-Chih Huang
semanticscholar   +1 more source

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