Results 21 to 30 of about 1,802,873 (349)

2‐Selmer parity for hyperelliptic curves in quadratic extensions [PDF]

open access: yesProceedings of the London Mathematical Society, 2015
We study the 2‐parity conjecture for Jacobians of hyperelliptic curves over number fields. Under some mild assumptions on their reduction, we prove the conjecture over quadratic extensions of the base field.
A. Morgan
semanticscholar   +1 more source

Polynomial Time Attack on Wild McEliece Over Quadratic Extensions [PDF]

open access: yesIEEE Transactions on Information Theory, 2014
We present a polynomial-time structural attack against the McEliece system based on Wild Goppa codes defined over a quadratic finite field extension. We show that such codes can be efficiently distinguished from random codes.
Alain Couvreur, A. Otmani, J. Tillich
semanticscholar   +1 more source

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 ...
Lee, Jon   +3 more
openaire   +2 more sources

Minimal convex extensions and finite difference discretisation of the quadratic Monge–Kantorovich problem [PDF]

open access: yesEuropean journal of applied mathematics, 2017
We present an adaptation of the Monge–Ampère (MA) lattice basis reduction scheme to the MA equation with second boundary value condition, provided the target is a convex set.
J. Benamou, V. Duval
semanticscholar   +1 more source

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

Metric Lie algebras and quadratic extensions [PDF]

open access: yes, 2003
The present paper contains a systematic study of the structure of metric Lie algebras, i.e., finite-dimensional real Lie algebras equipped with a nondegenerate invariant symmetric bilinear form. We show that any metric Lie algebra g without simple ideals
I. Kath, M. Olbrich
semanticscholar   +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

Some homological properties of skew PBW extensions [PDF]

open access: yes, 2013
We prove that if R is a left Noetherian and left regular ring then the same is true for any bijective skew PBW extension A of R. From this we get Serre's Theorem for such extensions.
Armando Reyes   +2 more
core   +1 more source

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