Results 21 to 30 of about 162,162 (276)

Adaptive Sparse Grids with Nonlinear Basis in Interval Problems for Dynamical Systems

open access: yesComputation, 2023
Problems with interval uncertainties arise in many applied fields. The authors have earlier developed, tested, and proved an adaptive interpolation algorithm for solving this class of problems.
Alexander Yu. Morozov   +1 more
doaj   +1 more source

Application of Lagrange Interpolation Method to Solve First-Order Differential Equation Using Newton Interpolation Approach

open access: yesEurasian Journal of Science and Engineering, 2023
One of the important problems in mathematics is finding the analytic solution and numerical solution of the differential equation using various methods and techniques.
Salisu Ibrahim
doaj   +1 more source

Spectral characteristics of two parameter fifth degree polynomial convolution kernel [PDF]

open access: yesBulletin of Natural Sciences Research, 2022
In this paper, the spectral characteristic of a polynomial two parameter convolutional fifth-order interpolation kernel is determined. The spectral characteristic is determined as follows. First, the kernel is decomposed into components.
Milivojević Zoran   +2 more
doaj   +1 more source

Regular polynomial interpolation and approximation of global solutions of linear partial differential equations [PDF]

open access: yes, 2007
We consider regular polynomial interpolation algorithms on recursively defined sets of interpolation points which approximate global solutions of arbitrary well-posed systems of linear partial differential equations.
Kampen, Joerg
core   +4 more sources

Equidistribution of the Fekete points on the sphere [PDF]

open access: yes, 2008
The Fekete points are the points that maximize a Vandermonde-type determinant that appears in the polynomial Lagrange interpolation formula. They are well suited points for interpolation formulas and numerical integration.
D.P. Hardin   +10 more
core   +2 more sources

Optimal control for a fractional tuberculosis infection model including the impact of diabetes and resistant strains

open access: yesJournal of Advanced Research, 2019
The objective of this paper is to study the optimal control problem for the fractional tuberculosis (TB) infection model including the impact of diabetes and resistant strains. The governed model consists of 14 fractional-order (FO) equations.
N.H. Sweilam   +2 more
doaj   +1 more source

A Discrete Adapted Hierarchical Basis Solver For Radial Basis Function Interpolation

open access: yes, 2012
In this paper we develop a discrete Hierarchical Basis (HB) to efficiently solve the Radial Basis Function (RBF) interpolation problem with variable polynomial order.
Castrillon-Candas, Julio Enrique   +2 more
core   +1 more source

Polynomial Manifold Interpolation for Direction Finding in the Presence of Mutual Coupling

open access: yesIEEE Access, 2019
Direction-of-arrival (DOA) estimation in the presence of mutual coupling among the antennas is an important problem in direction finding systems. To address the mutual coupling issue, a polynomial manifold interpolation approach is proposed in this paper.
Hongtao Duan   +4 more
doaj   +1 more source

Development of Kinematic Ephemeris Generator for Korea Pathfinder Lunar Orbiter (KPLO)

open access: yesJournal of Astronomy and Space Sciences, 2020
This paper presents a kinematic ephemeris generator for Korea Pathfinder Lunar Orbiter (KPLO) and its performance test results. The kinematic ephemeris generator consists of a ground ephemeris compressor and an onboard ephemeris calculator.
Min-Sup Song   +3 more
doaj   +1 more source

A Hybrid Full-Discretization Method of Multiple Interpolation Polynomials and Precise Integration for Milling Stability Prediction

open access: yesMathematics, 2023
As milling chatter can lead to poor machining quality and limit the efficiency of productivity, it is of great significance to learn about milling chatter stability and research the effective and fast prediction of milling stability.
Xuefeng Yang, Wenan Yang, Youpeng You
doaj   +1 more source

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