نتایج جستجو برای: cubic b

تعداد نتایج: 930336  

By applying finite difference formula to time discretization and the cubic B-splines for spatial variable, a numerical method for solving the inverse system of Burgers equations is presented. Also, the convergence analysis and stability for this problem are investigated and the order of convergence is obtained. By using two test problems, the accuracy of presented method is verified. Additional...

Journal: :wavelets and linear algebra 0
ataollah askari hemmat depatrment of mathematics graduate university of advanced technology tahereh ismaeelpour shahid bahonar university of kerman habibollah saeedi shahid bahonar university of kerman, kerman, iran

in this work, we proposed an ef ective method based on cubic and pantic b-spline scaling functions to solve partial di fferential equations of frac- tional order. our method is based on dual functions of b-spline scaling func- tions. we derived the operational matrix of fractional integration of cubic and pantic b-spline scaling functions and used them to transform the mentioned equations to a ...

Journal: :Fuzzy Information and Engineering 2015

In this work, we proposed an effective method based on cubic and pantic B-spline scaling functions to solve partial differential equations of fractional order. Our method is based on dual functions of B-spline scaling functions. We derived the operational matrix of fractional integration of cubic and pantic B-spline scaling functions and used them to transform the mentioned equations to a syste...

Journal: :computational methods for differential equations 0
k. r. raslan department of mathematics, faculty of science, al-azhar university talaat s. el-danaf department of mathematics, faculty of science, menoufia university khalid k. ali department of mathematics, faculty of science, al-azhar univesity

in the present article, a numerical method is proposed for the numerical solution of thekdv equation by using a new approach by combining cubic b-spline functions. in this paper we convert the kdv equation to system of two equations. the method is shown to be unconditionally stable using von-neumann technique. to test accuracy the error norms2l, ∞l are computed. three invariants of motion are p...

Journal: :international journal of mathematical modelling and computations 0
j. rashidinia department of mathematics, islamic azad university,central tehran branch, iran iran, islamic republic of f. esfahani department of mathemetics, iran university of science and technology iran, islamic republic of s. jamalzadeh department of mathemetics, iran university of science and technology iran, islamic republic of

we develope a numerical method based on b-spline collocation method to solve linear klein-gordon equation. the proposed scheme is unconditionally stable. the results of numerical experiments have been compared with the exact solution to show the efficiency of the method computationally. easy and economical implementation is the strength of this approach.

2003
S. K. Lucas

There are thousands of articles published on variants of splines, including least squares cubic splines. One of the first least squares articles was de Boor and Rice [1], and a comprehensive explanatory textbook is Dierckx [2]. Unfortunately, every example in the literature and on the web of a least squares cubic spline makes use of B-splines. While B-splines have a certain elegance, they are s...

Journal: :Graphs and Combinatorics 2010

In this paper, we prove the generalized Hyers-Ulam-Rassias stability of the generalized radical cubic functional equation[    fleft( sqrt[3]{ax^3 + by^3}right)=af(x) + bf(y),]    where $a,b in mathbb{R}_+$ are fixed positive real numbers, by using direct method in quasi-$beta$-Banach spaces. Moreover, we use subadditive functions to investigate stability of the generaliz...

Journal: :journal of mathematical modeling 2016
nehzat ebrahimi jalil rashidinia

the spline collocation method  is employed to solve a system of linear and nonlinear fredholm and volterra integro-differential equations. the solutions are collocated by cubic b-spline and the integrand is approximated by the newton-cotes formula. we obtain the unique solution for linear and nonlinear system $(nn+3n)times(nn+3n)$ of integro-differential equations. this approximation reduces th...

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