Results 11 to 20 of about 7,576 (262)

The quadratic Graver cone, quadratic integer minimization, and extensions [PDF]

open access: yesMathematical Programming, 2012
We consider the nonlinear integer programming problem of minimizing a quadratic function over the integer points in variable dimension satisfying a system of linear inequalities. We show that when the Graver basis of the matrix defining the system is given, and the quadratic function lies in a suitable {\em dual Graver cone}, the problem can be solved ...
Jon Lee 0001   +3 more
openaire   +2 more sources

The size function for quadratic extensions of complex quadratic fields [PDF]

open access: yesJournal de théorie des nombres de Bordeaux, 2017
The function h 0 for a number field is an analogue of the dimension of the Riemann–Roch spaces of divisors on an algebraic curve.
Tran Nguyen Thanh, Ha
openaire   +3 more sources

Electroweak phase transition triggered by fermion sector

open access: yesJournal of High Energy Physics, 2022
To realize first-order electroweak phase transition, it is necessary to generate a barrier in the thermal Higgs potential, which is usually triggered by scalar degree of freedom. We instead investigate phase transition patterns in pure fermion extensions
Qing-Hong Cao   +4 more
doaj   +1 more source

FINITE ELEMENT IMPLEMENTATION OF GEOMETRICALLY NONLINEAR CONTACT

open access: yesActa Polytechnica CTU Proceedings, 2021
The OOFEM finite element software has been recently updated to include contact algorithms for small strain applications. In this work, we attempt to extend the contact algorithms to large strain problems.
Ondřej Faltus, Martin Horák
doaj   +1 more source

Entire solutions for several general quadratic trinomial differential difference equations

open access: yesOpen Mathematics, 2021
This paper is devoted to exploring the existence and the forms of entire solutions of several quadratic trinomial differential difference equations with more general forms.
Luo Jun, Xu Hong Yan, Hu Fen
doaj   +1 more source

Quadratic Zonotopes:An extension of Zonotopes to Quadratic Arithmetics

open access: yesCoRR, 2014
Affine forms are a common way to represent convex sets of $\mathbb{R}$ using a base of error terms $ε\in [-1, 1]^m$. Quadratic forms are an extension of affine forms enabling the use of quadratic error terms $ε_i ε_j$. In static analysis, the zonotope domain, a relational abstract domain based on affine forms has been used in a wide set of settings, e ...
Assalé, Adjé   +2 more
openaire   +3 more sources

On automorphism group of free quadratic extensions over a ring

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1984
Let R be a ring with 1, ρ an automorphism of R of order 2. Then a normal extension of the free quadratic extension R[x,ρ] with a basis {1,x} over R with an R-automorphism group G is characterized in terms of the element (x−(x)α) for α in G.
George Szeto
doaj   +1 more source

Sur la 2-Extension Maximale Non Ramifiée de la Z2-Extension Cyclotomique de Certains Corps Quadratiques

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2014
Soient ℓ et ℓ' deux nombres premiers distincts, k = Q(√ℓℓ') et k∞ la Z2-extension cyclotomique de k. Soient L∞ la 2-extension maximale non ramifiée sur k∞ et L∞ la sous-extension abélienne maximale de L∞/k∞.
Mouhib Ali
doaj   +1 more source

On the Content Bound for Real Quadratic Field Extensions

open access: yesAxioms, 2012
Let K be a finite extension of Q and let S = {ν} denote the collection of K normalized absolute values on K. Let V+K denote the additive group of adeles over K and let K ≥0   c : V + → R denote the content map defined as c({aν }) = Q K   ν ∈S ν (aν ) for
Robert G. Underwood
doaj   +1 more source

Nonlinear evolution of water waves and their dispersion relation in coastal waters [PDF]

open access: yesTheoretical and Applied Mechanics, 2023
Preliminary results of the derivation of a new phase-resolving (deterministic) spatio-temporal nonlinear model of water wave evolution in nondeep waters with constant bathymetry are presented in this paper. The model is the first of its kind to include a
Vrećica Teodor, Toledo Yaron
doaj   +1 more source

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