نتایج جستجو برای: trigonometric b spline

تعداد نتایج: 911646  

Journal: :iranian journal of science and technology (sciences) 2012
a. askari-hemmat

in this work we deal with the question: how can one improve the approximation level for some nonlinear integral equations? good candidates for this aim are semi orthogonal b-spline scaling functions and their duals. although there are different works in this area, only b-spline of degree at most 2 are used for this approximation. here we compute b-spline scaling functions of degree 4 and their ...

D. Kalvand J. Rashidinia, L. Tepoyan

Generalized solution on Neumann problem of the fourth order ordinary differential equation in space $W^2_alpha(0,b)$ has been discussed, we obtain the condition on B.V.P when the solution is in classical form. Formulation of Quintic Spline Function has been derived and the consistency relations are given.Numerical method,based on Quintic spline approximation has been developed. Spline solution ...

Journal: :journal of linear and topological algebra (jlta) 0
j rashidinia school of mathematics, iran university of science and technology, tehran, iran. d kalvand faculty of mathematics, yerevan state university , yerevan, armenia. l tepoyan faculty of mathematics, yerevan state university , yerevan, armenia.

generalized solution on neumann problem of the fourth order ordinary di erential equation in space w2 (0; b) has been discussed , we obtain the condition on b.v.p when the solution is in classical form. formulation of quintic spline function has been derived and the consistency relations are given.numerical method,based on quintic spline approximation has been developed. spline solution of the...

‎In this paper we introduce a numerical approach that solves optimal control problems (OCPs) ‎using collocation methods‎. ‎This approach is based upon B-spline functions‎. ‎The derivative matrices between any two families of B-spline functions are utilized to‎ ‎reduce the solution of OCPs to the solution of nonlinear optimization problems‎. ‎Numerical experiments confirm our heoretical findings‎.

2010
Jin Xie Jieqing Tan Shengfeng Li J. Xie J. Tan S. Li

A method of generating cubic blending spline curves based on weighted trigonometric and hyperbolic polynomial is presented in this paper. The curves inherit nearly all properties of cubic B-splines and enjoy some other advantageous properties for modeling. They can represent some conics and some transcendental curves exactly. Here weight coefficients are also shape parameters, which are called ...

In this paper, quadratic and sextic B-splines are used to construct an approximating function based on the integral values instead of the function values at the knots. This process due to the type of used B-splines (fourth order or sixth order), called integro quadratic or sextic spline interpolation. After introducing the integro quartic and sextic B-spline interpolation, their convergence is ...

Journal: :Journal of Low Frequency Noise Vibration and Active Control 2022

In this paper, the Khater II analytical technique is used to examine novel soliton structures for fractional nonlinear third-order Schrödinger (3-FNLS) problem. The 3-FNLS equation explains dynamical behavior of a system’s quantum aspects and ultra-short optical fiber pulses. Additionally, it determines wave function mechanical system in which atomic particles behave similarly waves. For exampl...

Journal: :CoRR 2016
Ágoston Róth

We generalize the transfinite triangular interpolant of (Nielson, 1987) in order to generate visually smooth (not necessarily polynomial) local interpolating quasi-optimal triangular spline surfaces. Given as input a triangular mesh stored in a half-edge data structure, at first we produce a local interpolating network of curves by optimizing quadratic energy functionals described along the arc...

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