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Computing Qualitatively Correct Approximations of Balance Laws - Exponential-Fit, Well-Balanced and Asymptotic-Preserving (Hardcover, 2013 ed.) Loot Price: R2,924
Discovery Miles 29 240
Computing Qualitatively Correct Approximations of Balance Laws - Exponential-Fit, Well-Balanced and Asymptotic-Preserving...

Computing Qualitatively Correct Approximations of Balance Laws - Exponential-Fit, Well-Balanced and Asymptotic-Preserving (Hardcover, 2013 ed.)

Laurent Gosse

Series: SEMA SIMAI Springer Series, 2

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Loot Price R2,924 Discovery Miles 29 240 | Repayment Terms: R274 pm x 12*

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Substantial effort has been drawn for years onto the development of (possibly high-order) numerical techniques for the scalar homogeneous conservation law, an equation which is strongly dissipative in L1 thanks to shock wave formation. Such a dissipation property is generally lost when considering hyperbolic systems of conservation laws, or simply inhomogeneous scalar balance laws involving accretive or space-dependent source terms, because of complex wave interactions. An overall weaker dissipation can reveal intrinsic numerical weaknesses through specific nonlinear mechanisms: Hugoniot curves being deformed by local averaging steps in Godunov-type schemes, low-order errors propagating along expanding characteristics after having hit a discontinuity, exponential amplification of truncation errors in the presence of accretive source terms... This book aims at presenting rigorous derivations of different, sometimes called well-balanced, numerical schemes which succeed in reconciling high accuracy with a stronger robustness even in the aforementioned accretive contexts. It is divided into two parts: one dealing with hyperbolic systems of balance laws, such as arising from quasi-one dimensional nozzle flow computations, multiphase WKB approximation of linear Schroedinger equations, or gravitational Navier-Stokes systems. Stability results for viscosity solutions of onedimensional balance laws are sketched. The other being entirely devoted to the treatment of weakly nonlinear kinetic equations in the discrete ordinate approximation, such as the ones of radiative transfer, chemotaxis dynamics, semiconductor conduction, spray dynamics or linearized Boltzmann models. "Caseology" is one of the main techniques used in these derivations. Lagrangian techniques for filtration equations are evoked too. Two-dimensional methods are studied in the context of non-degenerate semiconductor models.

General

Imprint: Springer-Verlag
Country of origin: Italy
Series: SEMA SIMAI Springer Series, 2
Release date: 2013
First published: 2013
Authors: Laurent Gosse
Dimensions: 235 x 155 x 23mm (L x W x T)
Format: Hardcover
Pages: 341
Edition: 2013 ed.
ISBN-13: 978-88-470-2891-3
Categories: Books > Science & Mathematics > Mathematics > Numerical analysis
Books > Science & Mathematics > Physics > General
Books > Science & Mathematics > Mathematics > Calculus & mathematical analysis > Differential equations
Books > Science & Mathematics > Mathematics > Applied mathematics > Mathematics for scientists & engineers
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LSN: 88-470-2891-4
Barcode: 9788847028913

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