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Quadratic Extensions

open access: yesFormalized Mathematics, 2021
Summary In this article we further develop field theory [6], [7], [12] in Mizar [1], [2], [3]: we deal with quadratic polynomials and quadratic extensions [5], [4]. First we introduce quadratic polynomials, their discriminants and prove the midnight formula. Then we show that - in case the discriminant of p being non square - adjoining a
Schwarzweller, Christoph   +1 more
openaire   +4 more sources

Quadratic Extensions in ACL2 [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2020
Given a field K, a quadratic extension field L is an extension of K that can be generated from K by adding a root of a quadratic polynomial with coefficients in K. This paper shows how ACL2(r) can be used to reason about chains of quadratic extension fields Q = K_0, K_1, K_2, ..., where each K_i+1 is a quadratic extension field of K_i.
Gamboa, Ruben   +2 more
openaire   +2 more sources

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

Supersimplicity and quadratic extensions [PDF]

open access: yesArchive for Mathematical Logic, 2008
The paper deals with the algebraic characterization of supersimple fields. Pillay conjectured that such a field \(K\) is perfect, bounded and pseudo algebraically closed, and with Poizat proved both perfection and boundedness. Thus it remains to prove or disprove pseudo algebraic closedness, in other words that every absolutely irreducible plane curve ...
Martin-Pizarro, Amador   +1 more
openaire   +3 more sources

Quadratic Extensions of Linearly Compact Fields [PDF]

open access: yesTransactions of the American Mathematical Society, 1972
A group valuation is constructed on the norm factor group of a quadratic extension of a linearly compact field, and the norm factor group is explicitly computed as a valued group. Generalizations and applications of this structure theory are made to cyclic extensions of prime degree, to square (and pth power) factor groups, to generalized quaternion ...
Brown, Ron, Warner, Hoyt D.
openaire   +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

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

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

First-Degree Prime Ideals of Biquadratic Fields Dividing Prescribed Principal Ideals

open access: yesMathematics, 2020
We describe first-degree prime ideals of biquadratic extensions in terms of the first-degree prime ideals of two underlying quadratic fields. The identification of the prime divisors is given by numerical conditions involving their ideal norms.
Giordano Santilli, Daniele Taufer
doaj   +1 more source

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