Results 91 to 100 of about 1,510 (211)

Real intersection points of piecewise algebraic curves

, 2012
The piecewise algebraic curve, as the set of zeros of a bivariate spline function, is a generalization of the classical algebraic curve. In this work, we present an algorithm for computing the real intersection points of piecewise algebraic curves. It is
Jinming Wu, Wu, Jinming
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Construction of cubature formula for double integration with algebraic singularity by spline polynomial [PDF]

, 2015
In this note, singular integration problems of the form Hα (h) = ∫Ω∫ h(x,y)/|-x0|2-α dA, 0 ≤ α ≤ 1, where Ω = [x0,y0] × [b1, b2], x= (x,y) ϵ Ω and fixed point x 0 = (x0,y0) ϵ Ω is considered.
Ismail, Fudziah, Sirajo Lawan Bichi, Fudziah Ismail, Z. K. Eshkuvatov, Eshkuvatov, Zainidin K., Nik Long, Nik Mohd Asri, N.M.A. Nik Long, Bichi, Sirajo Lawan   +7 more
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A study of quintic B-spline based differential quadrature method for a class of semi-linear Fisher-Kolmogorov equations

Alexandria Engineering Journal, 2016
In the present manuscript, Fisher-Kolmogorov equation is solved numerically by adopting a differential quadrature technique that uses quintic B-spline as the basis functions for space integration.
R.C. Mittal, Sumita Dahiya
doaj   +1 more source

Spline křivky s pythagorejským hodografem [PDF]

, 2020
In this thesis the main object of our concern is a Pythagorean hodograph B- spline curve. We recall notions of both Pythagorean hodograph (PH) curves and B-spline functions separately first.
Kadlec, Kryštof
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Numerical approximation of time-fractional nonlinear partial integro-differential equation using fractional Euler and cubic trigonometric B-Spline methods

Partial Differential Equations in Applied Mathematics
Nonlinear mathematical problems arise due to existence of important complex nonlinear phenomena in engineering and science. In this article, a class of time-fractional nonlinear parabolic partial integro-differential equations is solved numerically by ...
Mehwish Saleem, Arshed Ali, Fazal-i-Haq, Hassan Khan   +3 more
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Splines on Cayley graphs of the symmetric group

Forum of Mathematics, Sigma
A spline is an assignment of polynomials to the vertices of a graph whose edges are labeled by ideals, where the difference of two polynomials labeling adjacent vertices must belong to the corresponding ideal. The set of splines forms a ring. We consider
Nathan R. T. Lesnevich
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Algebraic grid adaptation method using non-uniform rational B-spline surface modeling

, 1992
An algebraic adaptive grid system based on equidistribution law and utilized by the Non-Uniform Rational B-Spline (NURBS) surface for redistribution is presented.
Yang, Jiann-Cherng, Soni, B. K.
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Solving Fractional Optimal Control Problems Involving Caputo–Fabrizio Derivative Using Hermite Spline Functions

, 2023
In the current research, we develop a collocation method based on the biorthogonal Hermite cubic spline functions to solve a class of fractional optimal control problems using Caputo–Fabrizio derivative operator.
Lakestanı, Mehrdad, Noori Dalawi, Araz, Ashpazzadeh, Elmira   +2 more
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Algebraic splines in locally convex spaces

Mathematical Notes, 2005
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +4 more sources

Scattered data fitting on surfaces using projected Powell-Sabin splines

, 2007
We present C1 methods for either interpolating data or for fitting scattered data associated with a smooth function on a two-dimensional smooth manifold Ω embedded into R3. The methods are based on a local bivariate Powell-Sabin interpolation scheme, and
Schumaker, L.L., Davydov, Oleg
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