Results 21 to 30 of about 325,822 (315)

Evaluating Total Electron Content (TEC) Detrending Techniques in Determining Ionospheric Disturbances during Lightning Events in A Low Latitude Region

Remote Sensing, 2021
Total Electron Content (TEC) from Global Navigation Satellite Systems (GNSS) is used to ascertain the impact of space weather events on navigation and communication systems. TEC is detrended by several methods to show this impact.
Louis Osei-Poku, Long Tang, Wu Chen, Chen Mingli   +3 more
doaj   +1 more source

Nonnegative Polynomials and Circuit Polynomials

SIAM Journal on Applied Algebra and Geometry, 2022
21 ...
openaire   +3 more sources

The Maximal Complexity of Quasiperiodic Infinite Words

Axioms, 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

Mathematical approximator based on basic spline approximation [PDF]

E3S Web of Conferences
The article considers the problem of constructing a mathematical piecewise linear approximator based on approximation by basis splines. An algorithm has been developed designed to implement a class of special functions and create parallel ...
Turdimatov Mamirjon, Mukhtarov Farrukh, Ibrokhimov Nodirbekh, Umarov Shukhratjon, Mirzayev Jamshid, Rakhmatov Rasuljon   +5 more
doaj   +1 more source

Semilocal smoothihg S-splines [PDF]

Компьютерные исследования и моделирование, 2010
Semilocal smoothing splines or S-splines from class C p are considered. These splines consist of polynomials of a degree n, first p + 1 coefficients of each polynomial are determined by values of the previous polynomial and p its derivatives at the point
Dmitrii Alekseevich Silaev
doaj   +1 more source

Bounds for the sums of zeros of solutions of $u^{(m)}=P(z)u$ where $P$ is a polynomial

Electronic Journal of Qualitative Theory of Differential Equations, 2011
The main purpose of this paper is to consider the differential equation $u^{(m)}=P(z)u$ $(m\geq 2)$ where $P$ is a polynomial with in general complex coefficients. Let $z_{k}(u),$ $k=1,2,\ldots$ be the zeros of a nonzero solution $u$ to that equation. We
Ting-Bin Cao, Kai Liu, Hong-Yan Xu
doaj   +1 more source

Square-rich fixed point polynomial evaluation on FPGAs [PDF]

, 2014
Polynomial evaluation is important across a wide range of application domains, so significant work has been done on accelerating its computation. The conventional algorithm, referred to as Horner's rule, involves the least number of steps but can lead to
McLoughlin, Ian V., Suhaib A. Fahmy, Xu, Simin, Fahmy, Suhaib A., Ian V. McLoughlin, Simin Xu   +5 more
core   +1 more source

Random polynomials and polynomial factorization [PDF]

, 1996
We give a precise average-case analysis of a complete polynomial factorization chain over finite fields by methods based on generating functions and singularity analysis.
Philippe Flajolet, Xavier Gourdon, Daniel Panario   +2 more
openaire   +2 more sources

New Polynomial Bounds for Jordan’s and Kober’s Inequalities Based on the Interpolation and Approximation Method

Mathematics, 2019
In this paper, new refinements and improvements of Jordan’s and Kober’s inequalities are presented. We give new polynomial bounds for the s i n c ( x ) and cos ( x ) functions based on the interpolation and approximation ...
Lina Zhang, Xuesi Ma
doaj   +1 more source

Polynomial, Neural Network, and Spline Wavelet Models for Continuous Wavelet Transform of Signals

Sensors, 2021
In this paper a modified wavelet synthesis algorithm for continuous wavelet transform is proposed, allowing one to obtain a guaranteed approximation of the maternal wavelet to the sample of the analyzed signal (overlap match) and, at the same time, a ...
Andrey Stepanov
doaj   +1 more source