Results 41 to 50 of about 758,138 (253)
B-Spline Finite Elements and their Efficiency in Solving Relativistic Mean Field Equations [PDF]
, 1997 A finite element method using B-splines is presented and compared with a conventional finite element method of Lagrangian type. The efficiency of both methods has been investigated at the example of a coupled non-linear system of Dirac eigenvalue ...
Davies +14 more
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An Algorithm for Isolating the Real Solutions of Piecewise Algebraic Curves
Journal 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
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Smoothness assurance of the restorable surface of the cones of drill bits by cubic splines [PDF]
E3S Web of ConferencesThe article covers the issues of the application of the spline functions in engineering practice, in particular, in the design of cone drill bits. The polynomial splines, which most commonly used in computational methods are also described.
Akhmedov Yunus, Sharipov Kakhramon
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A Shape Preserving Class of Two-Frequency Trigonometric B-Spline Curves
Symmetry, 2023 This paper proposes a new approach to define two frequency trigonometric spline curves with interesting shape preserving properties. This construction requires the normalized B-basis of the space U4(Iα)=span{1,cost,sint,cos2t,sin2t} defined on compact ...
G. Albrecht +3 more
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The Numerical Solution of Problems in Calculus of Variation Using B-Spline Collocation Method
Journal 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
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Condition number analysis and preconditioning of the finite cell method [PDF]
, 2016 The (Isogeometric) Finite Cell Method - in which a domain is immersed in a structured background mesh - suffers from conditioning problems when cells with small volume fractions occur.
de Prenter, F. +3 more
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Real-Time Trajectory Planning and Control for Constrained UAV Based on Differential Flatness
International Journal of Aerospace Engineering, 2022 The trajectory planning of UAV with nonholonomic constraints is usually taken as differential algebraic equation to solve the optimal control problem of functional extremum under the condition of inequality constraints.
Dongli Wu +4 more
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Ibn Al-Haitham Journal for Pure and Applied Sciences, 2018 In this paper generalized spline method is used for solving linear system of fractional integro-differential equation approximately. The suggested method reduces the system to system of linear algebraic equations.
Nabaa Najdi Hasan, Doaa Ahmed Hussien
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Approximation procedures for data acquisition in testing systems [PDF]
Computer Science Journal of Moldova, 1999 This paper deals with the results of spline approximation functions applied to periodical experimental data and its comparison with polynomial approximation functions.
N. Secrieru
doaj
An exponential spline approximation for fractional Bagley–Torvik equation
Boundary Value Problems, 2020 In this paper, we approximate the solution of fractional Bagley–Torvik equation by using the exponential spline function and the shifted Grünwald difference operator. The proposed methods reduce to the system of algebraic equations.
Homan Emadifar, Reza Jalilian
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