Results 81 to 90 of about 3,634,484 (348)

Asymptotic Hilbert polynomial and a bound for Waldschmidt constants

open access: yesElectronic Research Announcements in Mathematical Sciences, 2016
In the paper we give an upper bound for the Waldschmidt constants of the wide class of ideals. This generalizes the result obtained by Dumnicki, Harbourne, Szemberg and Tutaj-Gasinska, Adv. Math. 2014. Our bound is given by a root of a suitable derivative of a certain polynomial associated with the asymptotic Hilbert polynomial.
Dumnicki, Marcin   +2 more
openaire   +5 more sources

Heat Conduction Modulation in Incommensurate Twisted Stacking of Transition‐Metal Dichalcogenide

open access: yesAdvanced Functional Materials, EarlyView.
The interlayer thermal conductance in twisted bilayer TMDs is initially investigated experimentally by the thermoreflectance method. The overlap of lattice vibrations within individual layers and the interlayer interactions, as elucidated through both Raman spectroscopy and molecular dynamics simulations, are demonstrated to be critical factors in ...
Bin Xu   +6 more
wiley   +1 more source

Planar Polynomial Differential Systems of Degree One: Full Characterization of Its First Integrals

open access: yesInternational Journal of Differential Equations
In this work, we classify the first integrals of all planar polynomial differential systems of degree one with real constant coefficients. Additionally, we characterize when these first integrals are either polynomial, or rational, or nonalgebraic.
Bilal Ghermoul
doaj   +1 more source

New Quasi-Coincidence Point Polynomial Problems

open access: yesJournal of Applied Mathematics, 2013
Let F:ℝ×ℝ→ℝ be a real-valued polynomial function of the form F(x,y)=as(x)ys+as-1(x)ys-1+⋯+a0(x), where the degree s of y in F(x,y) is greater than or equal to 1.
Yi-Chou Chen, Hang-Chin Lai
doaj   +1 more source

Polynomial affine translation surfaces in Euclidean 3-space

open access: yesBoletim da Sociedade Paranaense de Matemática, 2019
In this paper we study the polynomial affine translation surfaces in E3 with constant curvature. We derive some non-existence results for such surfaces. Several examples are also given by figures.
Hülya Gün Bozok, Mahmut Ergüt
doaj   +1 more source

Polynomial computation of Hankel singular values [PDF]

open access: yes, 1992
A revised and improved version of a polynomial algorithm is presented. It was published by N.J. Young (1990) for the computation of the singular values and vectors of the Hankel operator defined by a linear time-invariant system with a rotational ...
Kwakernaak, Huibert
core   +1 more source

Polynomials with constant Hessian determinants in dimension three [PDF]

open access: yesJournal of Pure and Applied Algebra, 2015
16 pages, refereed for JPAA, stripped w.r.t.
openaire   +4 more sources

Optical Control of the Thermal Conductivity in BaTiO3

open access: yesAdvanced Functional Materials, EarlyView.
Light‐driven manipulation of thermal conductivity in archetypal ferroelectric, BaTiO3, offers a novel and effective approach for the dynamical control of the heat flux, with potential applications in thermal management and phonon‐based logic. Abstract Achieving dynamic control over thermal conductivity remains a formidable challenge in condensed matter
Claudio Cazorla   +4 more
wiley   +1 more source

Effect of non-polynomial input to a switching circuit [PDF]

open access: yes, 2001
In this paper, the validity of the state-space averaging method is analyzed. We assume that the state-space piecewise method is an exact model for a fast switching circuit.
Ling, Wing-Kuen, Tam, Peter Kwong-Shun
core  

On the Bernstein Constants of Polynomial Approximation

open access: yesConstructive Approximation, 2006
Assume \(\alpha >0\) is not an integer. In papers published in 1913 and 1938, S.~N.~Bernstein established the limit $$\Lambda _{\infty ,\alpha }^{\ast }=\lim_{n\rightarrow \infty }n^{\alpha}E_{n}[ \vert x\vert ^{\alpha };L_{\infty }[ {-}1,1]] .$$ Here \(E_{n}[ \vert x\vert ^{\alpha };L_{\infty }[ -1,1] ] \) denotes the error in best uniform ...
openaire   +2 more sources

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