Results 21 to 30 of about 1,716,432 (375)

The Maximal Complexity of Quasiperiodic Infinite Words

open access: yesAxioms, 2021
A quasiperiod of a finite or infinite string is a word whose occurrences cover every part of the string. An infinite string is referred to as quasiperiodic if it has a quasiperiod.
Ludwig Staiger
doaj   +1 more source

Matrix of Polynomials Model based Polynomial Dictionary Learning Method for Acoustic Impulse Response Modeling [PDF]

open access: yes, 2017
We study the problem of dictionary learning for signals that can be represented as polynomials or polynomial matrices, such as convolutive signals with time delays or acoustic impulse responses.
Dong, Jing   +4 more
core   +2 more sources

An Explanation of Mellin’s 1921 Paper

open access: yesИзвестия Иркутского государственного университета: Серия "Математика", 2023
In 1921 Mellin published a Comptes Rendu paper computing the principal solution of a polynomial using generalized hypergeometric functions of its coefficients. He used an integral transform nowadays bearing his name.
W. M. Lawton
doaj   +1 more source

Polynomial Norms [PDF]

open access: yes, 2018
In this paper, we study polynomial norms, i.e. norms that are the $d^{\text{th}}$ root of a degree-$d$ homogeneous polynomial $f$. We first show that a necessary and sufficient condition for $f^{1/d}$ to be a norm is for $f$ to be strictly convex, or ...
Ahmadi, Amir Ali   +2 more
core   +2 more sources

Deterministic polynomial-time approximation algorithms for partition functions and graph polynomials [PDF]

open access: yesElectron. Notes Discret. Math., 2016
We show a new way of constructing deterministic polynomial-time approximation algorithms for computing complex-valued evaluations of a large class of graph polynomials on bounded degree graphs.
V. Patel, Guus Regts
semanticscholar   +1 more source

Polynomial Cohomology and Polynomial Maps on Nilpotent Groups [PDF]

open access: yes, 2019
We introduce a refined version of group cohomology and relate it to the space of polynomials on the group in question. We show that the polynomial cohomology with trivial coefficients admits a description in terms of ordinary cohomology with polynomial ...
Kyed, David, Petersen, Henrik Densing
core   +2 more sources

Polynomial selections and separation by polynomials [PDF]

open access: yesStudia Mathematica, 1996
Necessary and sufficient conditions under which two real functions defined on the real interval can be separated by a polynomial are given. An immediate consequence of the main result is the existence of the polynomial separation of convex functions of higher order. Another application is some Hyers-Ulam-stability-type result.
openaire   +3 more sources

Generalized and Extended Versions of Ankeny–Rivlin and Improved, Generalized, and Extended Versions of Rivlin Type Inequalities for the sth Derivative of a Polynomial

open access: yesMathematics, 2021
Let p(z) be a polynomial of degree n having no zeros in |z|
Kshetrimayum Krishnadas   +2 more
doaj   +1 more source

A Penrose polynomial for embedded graphs [PDF]

open access: yes, 2011
We extend the Penrose polynomial, originally defined only for plane graphs, to graphs embedded in arbitrary surfaces. Considering this Penrose polynomial of embedded graphs leads to new identities and relations for the Penrose polynomial which can not be
Aigner   +22 more
core   +4 more sources

Chain polynomials and Tutte polynomials [PDF]

open access: yesDiscrete Mathematics, 2002
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +1 more source

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