Results 1 to 10 of about 15,232 (148)

Triality for Homogeneous Polynomials [PDF]

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2021
Through the triality of SO(8,C), we study three interrelated homogeneous basis of the ring of invariant polynomials of Lie algebras, which give the basis of three Hitchin fibrations, and identify the explicit automorphisms that relate them.
Schaposnik, Laura P., Schulz, Sebastian
openaire   +3 more sources

Methods and algorithms for determining the main quasi-homogeneous forms of polynomials and power series [PDF]

open access: yesMATEC Web of Conferences, 2022
Methods are proposed that allow one to determine the special forms of polynomials and power series used in solving a number of practical problems. The most important of them are the construction of necessary and sufficient conditions for an extremum for ...
Nefedov Viktor
doaj   +1 more source

On (r; t; s)-nuclear polynomials

open access: yesMoroccan Journal of Pure and Applied Analysis, 2022
In this work we extend the concept of (r; t; s)-nuclear operators presented by Lapresté in (Studia math., T. LVII. 1976, 47 – 83) to n-homogeneous polynomials. Factorization and inclusion properties are described.
Bougoutaia Amar   +2 more
doaj   +1 more source

Normality and uniqueness of homogeneous differential polynomials

open access: yesМатематичні Студії, 2023
The primary goal of this work is to determine whether the results from [19, 20] still hold true when a differential polynomial is considered in place of a differential monomial.
R. S. Dyavanal, S. B. Kalakoti
doaj   +1 more source

Cubic homogeneous polynomial centers [PDF]

open access: yesPublicacions Matemàtiques, 2021
Agraïments: The first author is partially supported by NSFC-11271027 and NSFC- 11171267. First, doing a combination of analytical and algebraic computations, we determine by first time an explicit normal form depending only on three parameters for all cubic homogeneous polynomial differential systems having a center. After using the averaging method of
Li, Chengzhi, Llibre, Jaume
openaire   +7 more sources

Reconstruction of a homogeneous polynomial from its additive decompositions when identifiability fails [PDF]

open access: yesArab Journal of Mathematical Sciences, 2021
Let X⊂ℙr be an integral and non-degenerate complex variety. For any q∈ℙr let rX(q) be its X-rank and S(X,q) the set of all finite subsets of X such that |S|=rX(q) and q   ∈  〈S〉, where 〈〉 denotes the linear span.
E. Ballico
doaj   +1 more source

On Green’s Function of the Dirichlet Problem for the Polyharmonic Equation in the Ball

open access: yesAxioms, 2023
The paper gives an explicit representation of the Green’s function of the Dirichlet boundary value problem for the polyharmonic equation in the unit ball. The solution of the homogeneous Dirichlet problem is found.
Valery Karachik
doaj   +1 more source

Orthogonal Homogeneous Polynomials

open access: yesAdvances in Applied Mathematics, 1999
These are stringent results on real homogeneous polynomials in several real variables: if the polynomials form a normalized biorthogonal system (with respect to a certain inner product, which is defined using partial derivatives of one of the components), then an addition theorem holds, and conversely: the addition property is sufficient for ...
Fryant, A.   +2 more
openaire   +2 more sources

On Homogeneous Combinations of Linear Recurrence Sequences

open access: yesMathematics, 2020
Let (Fn)n≥0 be the Fibonacci sequence given by Fn+2=Fn+1+Fn, for n≥0, where F0=0 and F1=1. There are several interesting identities involving this sequence such as Fn2+Fn+12=F2n+1, for all n≥0. In 2012, Chaves, Marques and Togbé proved that if (Gm)m is a
Marie Hubálovská   +2 more
doaj   +1 more source

The set of forms with bounded strength is not closed

open access: yesComptes Rendus. Mathématique, 2022
The strength of a homogeneous polynomial (or form) is the smallest length of an additive decomposition expressing it whose summands are reducible forms. Using polynomial functors, we show that the set of forms with bounded strength is not always Zariski ...
Ballico, Edoardo   +3 more
doaj   +1 more source

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