Results 111 to 120 of about 1,510 (211)

Combining the Least-Squares Method with Touchard Polynomials for Solving Mixed Integro-Differential Equation

مجلة بغداد للعلوم
Using the well-known least-squares weighted residual method (LSM) in coupling with various degrees of Touchard polynomials (TPs), found the numerical solutions of Volterra–Fredholm integro-differential equations (VFIDEs) and mixed Volterra–Fredholm ...
Hameeda O. Al-Humedi, Zahraa Adnan Jameel   +1 more
doaj   +1 more source

A SPLINE QUASI-INTERPOLANT FOR FITTING 3D DATA ON THE SPHERE AND APPLICATIONS

, 2012
4 pagesInternational audienceIn [1], the authors have approached the sphere-like surfaces using the tensor product of an algebraic cubic spline quasiinterpolant with a 2¼-periodic Uniform Algebraic Trigonometric B-splines (UAT B-splines) of order four ...
Boujraf, Ahmed, Harba, Rachid, Sbibih, Driss, Léger, Christophe   +3 more
core  

APPLICATION OF THE CONTINUOUS OPERATOR METHOD TO THE SOLUTION OF THE POCKLINGTON AND GALLEN EQUATIONS FOR THIN WIRE ANTENNAS

Известия высших учебных заведений. Поволжский регион: Физико-математические науки, 2020
Background. One of the central tasks in microwave electronics is the construction of miniature antennas with high performance. The main equations used in modeling wire antennas of various configurations are the Pocklington, Gallen equations, singular ...
I. V. Boykov, P. V. Aykashev
doaj   +1 more source

Piecewise algebraic curve

, 2002
A piecewise algebraic curve is defined by a bivariate spline function. Using the techniques of the B-net form of bivariate splines function, discriminant sequence of polynomial (cf. Yang Lu et al. (Sci. China Ser.
Lai, Yi-Sheng, Wang, Ren-Hong
core   +1 more source

Exploring shallow water wave phenomena: A fractional approach to the Whitham-Broer-Kaup-Boussinesq-Kupershmidt system

Ain Shams Engineering Journal
This study generalizes the Whitham-Broer-Kaup-Boussinesq-Kupershmidt (WBKBK) system to a fractional-order model using conformable derivatives, aiming to better capture wave dissipation, anomalous dispersion, and memory effects in shallow water waves. The
Tianyong Han, Yueyong Jiang, Hongguang Fan   +2 more
doaj   +1 more source

A constructive algebraic strategy for interpolatory subdivision schemes induced by bivariate box splines

, 2013
This paper describes an algebraic construction of bivariate interpolatory subdivision masks induced by three-directional box spline subdivision schemes.
Gemignani L, Conti C, Romani L, GEMIGNANI, LUCA, Romani L.   +4 more
core   +1 more source

Efficient Adaptive Regulation Strategy for Control Position of Induction Motors

IEEE Access
In this paper, we introduce an efficient adaptive algorithm based on B-spline neural networks for trajectory tracking of angular position for industrial induction motors.
Ruben Tapia-Olvera, Antonio Valderrabano-Gonzalez, Francisco Beltran-Carbajal   +2 more
doaj   +1 more source

Energy Formulations of Algebraic Splines

, 1997
A-splines are implicit real algebraic curves in Bernstein-B'ezier (BB) form that are smooth. We develop a spectrum of physical A-spline curve models using various energy formulations based on the theory of elasticity.
Arun N. Netravali, Chandrajit L. Bajaj, Jindong Chen, Robert J. Holt   +3 more
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Planning and real-time modifications of a trajectory using spline techniques

, 2003
In this paper, methods based on various spline techniques for planning and fast modifications of a trajectory for robot manipulators are investigated.
DYLLONG E, VISIOLI, Antonio
core   +1 more source

Numerical Solution for Integro-Differential Equations by Using Quartic B-Spline Wavelet and Operational Matrices

, 2014
In this paper, Semi-orthogonal B-spline scaling functions and wavelets and their dual functions are presented to approximate the solutions of integro-differential equations.The B-spline scaling functions and wavelets, their properties and the operational
Yaser Rostami, Khosrow Maleknejad
core   +1 more source