Results 11 to 20 of about 1,510 (211)

Spline Approximations of Real Algebraic Surfaces

open access: yesJournal of Symbolic Computation, 1997
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Chandrajit L. Bajaj, Guoliang Xu
openaire   +2 more sources

An algebraic framework for geometrically continuous splines [PDF]

open access: yesMathematics of Computation, 2023
Geometrically continuous splines are piecewise polynomial functions defined on a collection of patches which are stitched together through transition maps. They are called G
Mantzaflaris, Angelos   +3 more
core   +7 more sources

An Upper Bound of the Bezout Number for Piecewise Algebraic Curves over a Rectangular Partition [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2012
A piecewise algebraic curve is a curve defined by the zero set of a bivariate spline function. Given two bivariate spline spaces (Δ) over a domain D with a partition Δ, the Bezout number BN(m,r;n,t;Δ) is defined as the maximum finite number of the ...
Feng-Gong Lang, Xiao-Ping Xu
doaj   +2 more sources

An Algorithm for Isolating the Real Solutions of Piecewise Algebraic Curves [PDF]

open access: yesJournal of Applied Mathematics, 2011
The piecewise algebraic curve, as the set of zeros of a bivariate spline function, is a generalization of the classical algebraic curve. In this paper, an algorithm is presented to compute the real solutions of two piecewise algebraic curves.
Jinming Wu, Xiaolei Zhang
doaj   +2 more sources

The Numerical Solution of Problems in Calculus of Variation Using B-Spline Collocation Method [PDF]

open access: yesJournal of Applied Mathematics, 2012
A B-spline collocation method is developed for solving boundary value problems which arise from the problems of calculus of variations. Some properties of the B-spline procedure required for subsequent development are given, and they are utilized to ...
M. Zarebnia, M. Birjandi
doaj   +2 more sources

Data Smoothing and Interpolation Using Eighth-order Algebraic Splines [PDF]

open access: yesIEEE Transactions on Signal Processing, 2004
A new type of algebraic spline is used to derive a filter for smoothing or interpolating discrete data points. The spline is dependent on control parameters that specify the relative importance of data fitting and the derivatives of the spline. A general spline of arbitrary order is first formulated using matrix equations. We then focus on eighth-order
Dan Simon, D. Simon, Simon, Daniel J.
openaire   +3 more sources

Solving Volterra-Fredholm integral equations by non-polynomial spline functions

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы
 It depends on our information, non-polynomial spline functions have not been applied for solving Volterra- Fredholm integral equations of the second kind yet.
S.H. Salim, K.H.F. Jwamer, R.K. Saeed
doaj   +2 more sources

A compact algebraic representation of cardinal GB-splines [PDF]

open access: yesDolomites Research Notes on Approximation
Summary: This work introduces a compact algebraic representation of generalized B-spline basis functions built upon uniform knot partitions (also known as cardinal GB-splines), that stands out for its simplicity with respect to the well-known integral formulation.
Romani L., Rossini M., Viscardi A.
openaire   +4 more sources

Numerical solution of variational problems via parametric quintic spline method [PDF]

open access: yesJournal of Hyperstructures, 2014
In this paper, the parametric quintic spline method is used for finding the solution of variational problems associated in engineering and physics. The present approximation reduce the problems to an explicit system of algebraic equations. Some numerical
M. Zarebnia, Z. Sarvari
doaj   +1 more source

A numerical approach for solving Fisher’s reaction–diffusion equation via a new kind of spline functions

open access: yesAin Shams Engineering Journal, 2021
The objective of this work is to propose a hybrid numerical method for the approximation of Fisher’s reaction–diffusion equation. The method is based on cubic uniform algebraic trigonometric (CUAT) tension B-spline functions and differential quadrature ...
Mohammad Tamsir, M.J. Huntul
doaj   +1 more source

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