Results 121 to 130 of about 2,299 (162)
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A technique for accurate collocation residual calculations
Chemical Engineering Journal, 1998A multiple-grid collocation method is presented that allows exact evaluation of residuals generated by truncated trial function expansion solutions to boundary-value problems with polynomial nonlinearities. The method is used to formulate a true, discrete analog to the Galerkin projection applicable to the same class of problems.
Raymond A. Adomaitis, Yi-hung Lin
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Collocation Computational Technique For Fractional Integro-Differential Equations
Nepal Journal of Mathematical Sciences, 2023In this study, the collocation method and first-kind Chebyshev polynomials are used to investigate the solution of fractional integral-differential equations. In order to solve the problem, we first convert it to a set of linear algebraic equations, which are then solved by using matrix inversion to get the unknown constants.
Olumuyiwa James Petera +5 more
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Journal of Electromagnetic Waves and Applications, 1994
An adaptive collocation method using subdomain sinusoidal basis functions is presented. The method combines the computational efficiency of a conventional collocation method with the rapid convergence properties of a Galerkin method. The method uses a reaction integral equation formulation and is based on quadrature principles.
D.J. Janse van Rensburg, D.A. McNamara
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An adaptive collocation method using subdomain sinusoidal basis functions is presented. The method combines the computational efficiency of a conventional collocation method with the rapid convergence properties of a Galerkin method. The method uses a reaction integral equation formulation and is based on quadrature principles.
D.J. Janse van Rensburg, D.A. McNamara
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Collocation Techniques for Structured Populations Modeled by Delay Equations
2020Collocation methods can be applied in different ways to delay models, e.g., to detect stability of equilibria, Hopf bifurcations and compute periodic solutions to name a few. On the one hand, piecewise polynomials can be used to approximate a periodic solution for some fixed values of the model parameters, possibly using an adaptive mesh.
alessia andò, dimitri breda
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Solution of summation—difference equations by collocation techniques
Chemical Engineering Science, 1987Abstract A technique to solve summation—difference equations by orthogonal collocation is presented. It is intended for models whose states are either finite or infinite sequences which can be approximated by global interpolation, as are, for instance, staged processes and polymerization kinetics.
Jesús Alvarez, José Alvarez
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Assessment of SMOS RFI Mitigation by means of a Triple collocation technique
IGARSS 2019 - 2019 IEEE International Geoscience and Remote Sensing Symposium, 2019A new technique to mitigate Radio Frequency Interference (RFI) contamination for SMOS images was recently proposed. The technique consists in extrapolating the measured brightness temperature (BT) frequencies in the u/v coverage map outside the star coverage of SMOS.
Roger Oliva +2 more
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Meshless and multi-resolution collocation techniques for parabolic interface models
Applied Mathematics and Computation, 2018zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Siraj-ul-Islam +2 more
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Numerical Approximation of Fractional Telegraph Equation via Legendre Collocation Technique
International Journal of Applied and Computational Mathematics, 2021zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Arvind Kumar Mishra +2 more
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A collocation technique for solving nonlinear Stochastic Itô–Volterra integral equations
Applied Mathematics and Computation, 2014zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Farshid Mirzaee, Elham Hadadiyan
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A Spectral Collocation Technique for the Solution of the Wigner–Poisson Problem
SIAM Journal on Numerical Analysis, 1992A numerical method for solving the coupled Wigner-Poisson system of nonlinear pseudodifferential equations is proposed and its numerical properties are analyzed. The paper extends a known mixed difference- spectral method in the case of a known potential function in a straightforward way to computing the potential by solving the Poisson equation ...
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