Results 21 to 30 of about 15,351 (267)

On composite abstract homogeneous polynomials [PDF]

open access: yesTransactions of the American Mathematical Society, 1977
We study the null-sets of composite abstract homogeneous polynomials obtained from a pair of abstract homogeneous polynomials defined on a vector space over an algebraically closed field of characteristic zero. First such study for ordinary polynomials in the complex plane was made by Szegö, Cohn, and Egerváry and Szegö’s theorem was later generalized ...
openaire   +2 more sources

Problems on multivariate reliability polynomial

open access: yesAtti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali, 2017
The original results include: (i) homogenization of a reliability polynomial; (ii) compact hypersurfaces attached to homogeneous polynomials; (iii) an affine diffeomorphism that preserves a reliability polynomial; (iv) duality of networks via a ...
Constantin Udriste   +2 more
doaj   +1 more source

New iterative codes for 𝓗-tensors and an application

open access: yesOpen Mathematics, 2016
New iterative codes for identifying 𝓗 -tensor are obtained. As an application, some sufficient conditions of the positive definiteness for an even-order real symmetric tensor, i.e., an even-degree homogeneous polynomial form are given.
Wang Feng, Sun Deshu
doaj   +1 more source

A Dichotomy for First-Order Reducts of Unary Structures [PDF]

open access: yesLogical Methods in Computer Science, 2018
Many natural decision problems can be formulated as constraint satisfaction problems for reducts $\mathbb{A}$ of finitely bounded homogeneous structures. This class of problems is a large generalisation of the class of CSPs over finite domains. Our first
Manuel Bodirsky, Antoine Mottet
doaj   +1 more source

Weights induced by homogeneous polynomials [PDF]

open access: yesPacific Journal of Mathematics, 1989
Let \(B\) be the unit ball and \(S\) the unit sphere in \({\mathbb{C}}^ n\) \((n\geq 2)\). Let \(\sigma\) be the unique normalized rotation-invariant Borel measure on \(S\) and \(m\) the normalized area measure on \({\mathbb{C}}.\) We first prove that if \(\Lambda\) is a holomorphic homogeneous polynomial on \({\mathbb{C}}^ n \)normalized so that ...
openaire   +2 more sources

A note on the integrability of exceptional potentials via polynomial bi-homogeneous potentials

open access: yesBulletin of Computational Applied Mathematics, 2021
This paper is concerned with the polynomial integrability of the two-dimensional Hamiltonian systems associated to complex homogeneous polynomial potentials of degree k of type $V_{k,l}=\alpha (q_2-i q_1)^l (q_2+iq_1)^{k-l}$ with $\alpha$ in C and l=0 ...
Primitivo B. Acosta-Humánez   +2 more
doaj  

The Nearest Zero Eigenvector of a Weakly Symmetric Tensor from a Given Point

open access: yesMathematics
We begin with a degree m real homogeneous polynomial in n indeterminants and bound the distance from a given n-dimensional real vector to the real vanishing of the homogeneous polynomial.
Kelly Pearson, Tan Zhang
doaj   +1 more source

On the growth of gap power series of homogeneous polynomials

open access: yesResearches in Mathematics
Let $f$ be an entire functions $f\colon \mathbb{C}^{p}\to\mathbb{C}$, represented by power series of the form $$f(z)=\sum\limits_{k=0}^{+\infty} P_k(z), z\in\mathbb{C}^p$$ where $P_0(z)\equiv a_{0}\in\mathbb{C}$, $P_k(z)=\sum\limits_{\|n\|=\lambda_k ...
A.I. Bandura   +2 more
doaj   +1 more source

Rigid Polynomial Differential Systems with Homogeneous Nonlinearities

open access: yesMathematics
Planar differential systems whose angular velocity is constant are called rigid or uniform differential systems. The first rigid system goes back to the pendulum clock of Christiaan Huygens in 1656; since then, the interest for the rigid systems has been
Jaume Llibre
doaj   +1 more source

Positive Semi-Definite and Sum of Squares Biquadratic Polynomials

open access: yesMathematics
Hilbert proved in 1888 that a positive semi-definite (PSD) homogeneous quartic polynomial of three variables always can be expressed as the sum of squares (SOS) of three quadratic polynomials, and a psd homogeneous quartic polynomial of four variables ...
Chunfeng Cui, Liqun Qi, Yi Xu
doaj   +1 more source

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