Muutke küpsiste eelistusi

Boundary Element Methods With Applications To Nonlinear Problems (2nd Edition) 2nd Revised edition [Kõva köide]

(Texas A&m Univ, Usa), (Texas A&m Univ, Usa)
Boundary Element Methods have become a major numerical tool in scientific and engineering problem-solving, with particular applications to numerical computations and simulations of partial differential equations in engineering.Boundary Element Methods provides a rigorous and systematic account of the modern mathematical theory of Boundary Element Methods, including the requisite background on generla partial, differential equation methods, Sobolev spaces, pseudodifferential and Fredholm operators and finite elements. This book is principally concerned with presenting mathematical formulations of boundary integral equations (BIE) for the most important linear elliptic boundary value problems (BVP) including, the potential equation, Helmholtz, thin plate, elastostatics equations, and discussing their computational algorithms and the accuracy of their solutions.This second edition has been fully revised and combines the mathematical rigour necessary for a full understanding of the subject, with extensive examples of applications illustrated with computer graphics. This book is intended as a textbook and reference for applied mathematicians, physical scientists and engineers at graduate and research level. It will be an invaluable sourcebook for all concerned with numerical modeling and the solution of partial differential equations.
Preface to the 1st edition vii
Dedication xi
Acknowledgements for the 1st edition xiii
Preface to the 2nd edition xv
Notation and Abbreviations xvii
1 Introduction
1(16)
1.1 How boundary element methods work
1(9)
1.2 An example of implementation
10(4)
1.3 Comparison between BEM and FEM
14(3)
2 Some Basic Properties of Sobolev Spaces
17(16)
2.1 Definition and imbedding theorems
17(12)
2.2 The trace theorems
29(4)
3 Theory of Distributions
33(30)
3.1 Test functions and generalized functions
33(8)
3.2 The pseudofunctions x±, n = 1, 2, 3
41(3)
3.3 The distributions (x±i0)-λ
44(2)
3.4 Regularizing divergent integrals in RN
46(3)
3.5 Fourier transform of tempered distributions
49(4)
3.6 Examples of Fourier transforms
53(10)
4 Pseudodifferential Operators
63(60)
4.1 Symbol class Sm
63(4)
4.2 Products and adjoints
67(7)
4.3 Elliptic operators
74(5)
4.4 Calculation of the principal symbols
79(6)
4.5 The Calderon projector
85(11)
4.6 Fredholm operators
96(9)
4.7 Applications to BIE of elliptic BVP
105(18)
5 Finite-Element Methods
123(68)
5.1 Minimization of a quadratic functional
123(5)
5.2 Error bounds for internal approximations
128(7)
5.3 Finite-element computation of BVP: an example
135(1)
5.4 (t, m)-systems of approximating subspaces
136(1)
5.5 Polynomial splines in one dimension
137(7)
5.6 Barycentric coordinates
144(2)
5.7 Finite elements in two dimensions
146(15)
5.8 Finite elements in three dimensions
161(5)
5.9 Computation of element matrices
166(3)
5.10 Curved transformations
169(3)
5.11 Accuracy of finite-element approximations
172(12)
5.12 The Aubin-Nitsche lemma
184(3)
5.13 Inverse inequalities
187(4)
6 The Potential Equation
191(110)
6.1 Occurrence of the potential equation
191(3)
6.2 Fundamental solution of Laplace equation
194(2)
6.3 Volume and boundary potentials
196(3)
6.4 Geometry of hypersurfaces
199(5)
6.5 Regularity of the layer potentials
204(22)
6.6 The two-dimensional case
226(4)
6.7 Regularity solutions of potential BVP
230(3)
6.8 Simple-layer representations
233(14)
6.9 Simple-layer representations for exterior BVP
247(5)
6.10 Double-layer representations for interior BVP
252(3)
6.11 Double-layer representations for exterior BVP
255(5)
6.12 Simple-layer representations for BVP
260(11)
6.13 Double-layer representations for BVP
271(4)
6.14 Multiconnected domains
275(4)
6.15 Direct formulation of BIE
279(2)
6.16 Numerical example (I)
281(9)
6.17 Numerical example (II)
290(3)
6.18 Numerical example (III)
293(8)
7 The Helmholtz Equation
301(72)
7.1 Background
301(7)
7.2 Fundamental solution of Helmholtz equation
308(4)
7.3 Regularity of the layer potentials
312(1)
7.4 Solution of BVP in scattering theory
313(4)
7.5 Asymptotics and uniqueness of solutions
317(6)
7.6 BIE solutions
323(10)
7.7 Exterior impedance BVP
333(2)
7.8 Solutions to the interior BVP
335(3)
7.9 Modified integral equation approach
338(2)
7.10 Numerical example (I)
340(17)
7.11 Numerical example (II)
357(3)
7.12 Numerical example (III)
360(13)
8 The Thin Plate Equation
373(68)
8.1 Kirchhoff thin static plate model
374(6)
8.2 Existence, uniqueness and regularity
380(2)
8.3 Multilayer potentials for the plate BVP
382(10)
8.4 BIE for interior plate BVP
392(20)
8.5 Other multilayer representations
412(2)
8.6 BIE for exterior plate BVP
414(11)
8.7 Numerical computations and examples (I)
425(2)
8.8 Numerical computations and examples (II)
427(14)
9 Linear Elastostatics
441(66)
9.1 Derivations equations in linear elasticity
441(3)
9.2 Kelvin's fundamental solution
444(7)
9.3 BVP in linear elastostatics
451(6)
9.4 The Betti-Somigliana formula
457(5)
9.5 Solutions of the interior BVP
462(6)
9.6 BIE in linear elastostatics
468(4)
9.7 Simple-layer representation
472(6)
9.8 Simple-layer solution BVP
478(2)
9.9 Solutions of the exterior BVP
480(7)
9.10 Direct formulations of BIE
487(5)
9.11 Numerical example (I)
492(7)
9.12 Numerical example (II)
499(2)
9.13 Numerical examples (III)
501(6)
10 Some Error Estimates
507(38)
10.1 Error estimates of Galerkin method
508(9)
10.2 Degree splines with uniform meshes
517(10)
10.3 Techniques for even-and odd-degree splines
527(15)
10.4 Collocation of augmented systems of BIE
542(3)
11 BEMs for Semilinear Elliptic PDEs (I)
545(68)
11.1 Introduction
545(4)
11.2 A straightforward iteration scheme
549(3)
11.3 Formulation of boundary integral equations
552(7)
11.4 Galerkin boundary element scheme
559(12)
11.5 Higher than regular-order error estimates
571(1)
11.6 Neumann and Robin boundary conditions
572(3)
11.7 Numerical examples
575(13)
11.8 Quasimonotone coupled 2x2 systems
588(25)
11.8.1 Monotone iteration scheme for nonlinearities of quasimonotone nonincreasing, quasimonotone nondecreasing, and mixed quasimonotone types
589(5)
11.8.2 Error analysis for a Galerkin boundary element monotone iteration scheme
594(8)
11.8.3 Comparison of eigenvalues and l2-norms of 2 x 2 matrices
602(4)
11.8.4 Numerical example
606(7)
12 BEMs for Semilinear Elliptic PDEs (II)
613(80)
12.1 Introduction
613(3)
12.2 Iterative algorithms and numerical methods
616(14)
12.2.1 The mountain-pass algorithm (MPA)
618(4)
12.2.2 The scaling iterative algorithm (SIA)
622(4)
12.2.3 The direct iteration algorithm (DIA) and the monotone iteration algorithm (MIA)
626(1)
12.2.4 A boundary element numerical elliptic solver based on the simple-layer and volume potentials
627(3)
12.3 Graphics visualization Dirichlet Problem
630(27)
12.3.1 The unit disk
632(1)
12.3.2 Nonconcentric annular domains
633(1)
12.3.3 A "pathological" annulus, with boundary formed by two tangent circles
633(4)
12.3.4 The radially symmetric annulus
637(7)
12.3.5 A dumbbell-shaped domain
644(3)
12.3.6 A starshaped domain degenerated from a dumbbell
647(2)
12.3.7 Dumbbell-shaped domains with cavities lacking symmetry
649(2)
12.3.8 Sign-changing solutions
651(6)
12.4 Singularly perturbed Dirichlet problem
657(15)
12.4.1 The unit disk
664(3)
12.4.2 The radially symmetric annulus Ω6
667(1)
12.4.3 The dumbbell-shaped domain Ω7
667(5)
12.5 Other Dirichlet problems
672(12)
12.5.1 Henon's equation
672(4)
12.5.2 Chandrasekhar's equation
676(5)
12.5.3 The Lane-Emden equation Λu+up = 0, p#3
681(3)
12.6 Sublinear Dirichlet problem
684(9)
12.6.1 Solutions of (12.103) by direct iteration
685(3)
12.6.2 A consequence of visualization: monotonicity of solutions of (12.103) with respect to p
688(5)
Appendix A
693(8)
A.1 Integration by parts and the Gauss-Green formulas
693(1)
A.2 Banach spaces. Linear operators and linear functionals. Reflexivity
693(2)
A.3 The basic principles of linear analysis
695(1)
A.4 Hilbert spaces. The Riesz representation theorem
696(1)
A.5 Compactness. Completely continuous operators
697(1)
A.6 Quotient spaces
698(1)
A.7 Direct sums. Projection operators
698(1)
A.8 The Cauchy-Schwarz inequality and the Holder-Young inequality
699(2)
Bibliography 701(10)
Subject Index 711