Generalized Collocation Methods

Generalized Collocation Methods
Author: Nicola Bellomo
Publisher: Springer Science & Business Media
Total Pages: 206
Release: 2007-09-26
Genre: Mathematics
ISBN: 0817646108

Analysis of nonlinear models and problems is crucial in the application of mathematics to real-world problems. This book approaches this important topic by focusing on collocation methods for solving nonlinear evolution equations and applying them to a variety of mathematical problems. These include wave motion models, hydrodynamic models of vehicular traffic flow, convection-diffusion models, reaction-diffusion models, and population dynamics models. The book may be used as a textbook for graduate courses on collocation methods, nonlinear modeling, and nonlinear differential equations. Examples and exercises are included in every chapter.

Collocation and Galerkin Time-Stepping Methods

Collocation and Galerkin Time-Stepping Methods
Author: H. T. Huynh
Publisher: BiblioGov
Total Pages: 42
Release: 2013-06
Genre:
ISBN: 9781289031084

We study the numerical solutions of ordinary differential equations by one-step methods where the solution at tn is known and that at t(sub n+1) is to be calculated. The approaches employed are collocation, continuous Galerkin (CG) and discontinuous Galerkin (DG). Relations among these three approaches are established. A quadrature formula using s evaluation points is employed for the Galerkin formulations. We show that with such a quadrature, the CG method is identical to the collocation method using quadrature points as collocation points. Furthermore, if the quadrature formula is the right Radau one (including t(sub n+1)), then the DG and CG methods also become identical, and they reduce to the Radau IIA collocation method. In addition, we present a generalization of DG that yields a method identical to CG and collocation with arbitrary collocation points. Thus, the collocation, CG, and generalized DG methods are equivalent, and the latter two methods can be formulated using the differential instead of integral equation. Finally, all schemes discussed can be cast as s-stage implicit Runge-Kutta methods.

Trefftz and Collocation Methods

Trefftz and Collocation Methods
Author: Z-C. Li
Publisher: WIT Press
Total Pages: 433
Release: 2008-02-22
Genre: Technology & Engineering
ISBN: 1845641531

This title was reviewed in the January 2009 issue of Mathematical Reviews.

Generalized Multipole Techniques for Electromagnetic and Light Scattering

Generalized Multipole Techniques for Electromagnetic and Light Scattering
Author: T. Wriedt
Publisher: Elsevier
Total Pages: 273
Release: 1999-12-01
Genre: Technology & Engineering
ISBN: 0080532373

This book is an edited volume of nine papers covering the different variants of the generalized multipole techniques (GMT). The papers were presented at the recent 3rd Workshop on Electromagnetics and Light Scattering - Theory and Applications, which focused on current GMT methods. These include the multiple multipole method (MMP), the discrete sources method (DSM), Yasuura's method, method of auxiliary sources and null-field method with discrete sources. Each paper presents a full theoretical description as well as some applications of the method in electrical engineering and optics. It also includes both 2D and 3D methods and other applications developed in the former Soviet Union and Japan.

Collocation and Galerkin Time-Stepping Methods

Collocation and Galerkin Time-Stepping Methods
Author: National Aeronautics and Space Adm Nasa
Publisher: Independently Published
Total Pages: 40
Release: 2019-01-13
Genre: Science
ISBN: 9781793962157

We study the numerical solutions of ordinary differential equations by one-step methods where the solution at tn is known and that at t(sub n+1) is to be calculated. The approaches employed are collocation, continuous Galerkin (CG) and discontinuous Galerkin (DG). Relations among these three approaches are established. A quadrature formula using s evaluation points is employed for the Galerkin formulations. We show that with such a quadrature, the CG method is identical to the collocation method using quadrature points as collocation points. Furthermore, if the quadrature formula is the right Radau one (including t(sub n+1)), then the DG and CG methods also become identical, and they reduce to the Radau IIA collocation method. In addition, we present a generalization of DG that yields a method identical to CG and collocation with arbitrary collocation points. Thus, the collocation, CG, and generalized DG methods are equivalent, and the latter two methods can be formulated using the differential instead of integral equation. Finally, all schemes discussed can be cast as s-stage implicit Runge-Kutta methods. Huynh, H. T. Glenn Research Center NASA/TM-2011-216340, E-17277

Spectral and High Order Methods for Partial Differential Equations

Spectral and High Order Methods for Partial Differential Equations
Author: Jan S. Hesthaven
Publisher: Springer Science & Business Media
Total Pages: 507
Release: 2010-10-29
Genre: Mathematics
ISBN: 3642153372

The book contains a selection of high quality papers, chosen among the best presentations during the International Conference on Spectral and High-Order Methods (2009), and provides an overview of the depth and breadth of the activities within this important research area. The carefully reviewed selection of the papers will provide the reader with a snapshot of state-of-the-art and help initiate new research directions through the extensive bibliography.

Recent Advances in Radial Basis Function Collocation Methods

Recent Advances in Radial Basis Function Collocation Methods
Author: Wen Chen
Publisher: Springer Science & Business Media
Total Pages: 98
Release: 2013-11-09
Genre: Technology & Engineering
ISBN: 3642395724

This book surveys the latest advances in radial basis function (RBF) meshless collocation methods which emphasis on recent novel kernel RBFs and new numerical schemes for solving partial differential equations. The RBF collocation methods are inherently free of integration and mesh, and avoid tedious mesh generation involved in standard finite element and boundary element methods. This book focuses primarily on the numerical algorithms, engineering applications, and highlights a large class of novel boundary-type RBF meshless collocation methods. These methods have shown a clear edge over the traditional numerical techniques especially for problems involving infinite domain, moving boundary, thin-walled structures, and inverse problems. Due to the rapid development in RBF meshless collocation methods, there is a need to summarize all these new materials so that they are available to scientists, engineers, and graduate students who are interest to apply these newly developed methods for solving real world’s problems. This book is intended to meet this need. Prof. Wen Chen and Dr. Zhuo-Jia Fu work at Hohai University. Prof. C.S. Chen works at the University of Southern Mississippi.