Results 11 to 20 of about 451,380 (271)

Evaluating the Tutte Polynomial for Graphs of Bounded Tree-Width [PDF]

open access: yes, 1998
It is known that evaluating the Tutte polynomial, $T(G; x, y)$, of a graph, $G$, is $\#$P-hard at all but eight specific points and one specific curve of the $(x, y)$-plane.
Noble, S D
core   +7 more sources

Nanoscale Confinement Enhances Ultrafast Demagnetization. [PDF]

open access: yesAdv Sci (Weinh)
Next generation spintronics may depend on successfully combining femtosecond spin dynamics with nanoscale device miniaturization. We address this by systematically studying the effect of nanoscale confinement on the femtosecond demagnetization of Iron. By combining ultrafast experiments sensitive to spins, charge carriers, and phonons, we uncover a nm ...
Windsor YW   +23 more
europepmc   +2 more sources

Polynomial cubic splines with tension properties [PDF]

open access: yes, 2010
In this paper we present a new class of spline functions with tension properties. These splines are composed by polynomial cubic pieces and therefore are conformal to the standard, NURBS based CAD/CAM ...
Costantini, P.   +2 more
core   +4 more sources

Evaluation of Multi-Incidence Angle Polarimetric Gaofen-3 SAR Wave Mode Data for Significant Wave Height Retrieval

open access: yesRemote Sensing, 2022
Significant wave height (SWH) is one of the most important descriptors for ocean wave fields. The polynomial regression (PolR) and Gaussian process regression (GPR) models are implemented to explore the effects of polarization and incidence angles on the
Chenqing Fan   +5 more
doaj   +1 more source

On polar Legendre polynomials

open access: yesRocky Mountain Journal of Mathematics, 2010
We introduce a new class of polynomials $\{P_{n}\}$, that we call polar Legendre polynomials, they appear as solutions of an inverse Gauss problem of equilibrium position of a field of forces with $n+1$ unit masses. We study algebraic, differential and asymptotic properties of this class of polynomials, that are simultaneously orthogonal with respect ...
Cabrera, H. Pijeira   +2 more
openaire   +4 more sources

Determination of Glucose Concentration By Rotation of Polarization Plane of He-Ne Laser [PDF]

open access: yesمجلة التربية والعلم, 2011
In this research, the optical activity of glucose solution had been studied through the studying of influence of this solution in rotation of polarization plane of laser He-Ne light, the different concentrations of glucose solution were selected for ...
Zead T. Ahmed Ameer F. Hammeed
doaj   +1 more source

Inequalities for the Polar Derivative of a Polynomial [PDF]

open access: yesAbstract and Applied Analysis, 2012
For a polynomial p(z) of degree n, we consider an operator Dα which map a polynomial p(z) into Dαp(z): = (α − z)p′(z) + np(z) with respect to α. It was proved by Liman et al. (2010) that if p(z) has no zeros in |z | < 1, then for all α,   β ∈ ℂ with |α | ≥ 1,    | β | ≤ 1 and |z | = 1, |zDαp(z) + nβ((|α | − 1)/2)p(z)|≤(n/2){[|α + β((|α | − 1 ...
openaire   +4 more sources

Lower Bound of the Complexity of Seven-Valued Functions in the Class of Polarized Polynomials

open access: yesИзвестия Иркутского государственного университета: Серия "Математика", 2017
One of the directions of the investigation of functions over finite fields is the study of their representations, including polynomial ones. In the area of polynomial representations of functions the problem of estimating the complexity of such ...
A.S. Baliuk, A.S. Zinchenko
doaj   +1 more source

Inequalities for the Polar Derivative of a Polynomial

open access: yesJournal of Inequalities and Applications, 2009
In this paper we obtain new results concerning maximum modulus of the polar derivative of a polynomial with restricted zeros. Our results generalize and refine upon the results of Aziz and Shah [An integral mean estimate for polynomial, Indian J. Pure Appl. Math.
M. Bidkham   +2 more
openaire   +4 more sources

A Method for Forest Canopy Height Inversion Based on UAVSAR and Fourier–Legendre Polynomial—Performance in Different Forest Types

open access: yesDrones, 2023
Mapping forest canopy height at large regional scales is of great importance for the global carbon cycle. Polarized interferometric synthetic aperture radar is an efficient and irreplaceable remote sensing tool.
Hongbin Luo   +4 more
doaj   +1 more source

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