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Preface |
7 |
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References |
8 |
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Contents |
10 |
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1 Introduction |
13 |
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1.1 Historical Background and Perspectives |
14 |
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1.2 About this Book |
17 |
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1.3 Software Libraries with Support for Reduced Basis Algorithms and Applications |
18 |
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References |
20 |
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2 Parametrized Differential Equations |
26 |
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2.1 Parametrized Variational Problems |
26 |
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2.1.1 Parametric Weak Formulation |
27 |
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2.1.2 Inner Products, Norms and Well-Posedness of the Parametric Weak Formulation |
27 |
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2.2 Discretization Techniques |
28 |
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2.3 Toy Problems |
30 |
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2.3.1 Illustrative Example 1: Heat Conduction Part 1 |
31 |
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2.3.2 Illustrative Example 2: Linear Elasticity Part 1 |
33 |
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References |
36 |
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3 Reduced Basis Methods |
37 |
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3.1 The Solution Manifold and the Reduced Basis Approximation |
38 |
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3.2 Reduced Basis Space Generation |
41 |
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3.2.1 Proper Orthogonal Decomposition (POD) |
42 |
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3.2.2 Greedy Basis Generation |
44 |
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3.3 Ensuring Efficiency Through the Affine Decomposition |
47 |
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3.4 Illustrative Examples |
49 |
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3.4.1 Illustrative Example 1: Heat Conduction Part 2 |
49 |
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3.4.2 Illustrative Example 2: Linear Elasticity Part 2 |
51 |
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3.5 Summary of the Method |
52 |
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References |
53 |
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4 Certified Error Control |
54 |
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4.1 Introduction |
54 |
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4.2 Error Control for the Reduced Order Model |
55 |
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4.2.1 Discrete Coercivity and Continuity Constants of the Bilinear Form |
55 |
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4.2.2 Error Representation |
56 |
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4.2.3 Energy and Output Error Bounds |
57 |
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4.2.4 mathbbV-Norm Error Bounds |
59 |
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4.2.5 Efficient Computation of the a Posteriori Estimators |
61 |
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4.2.6 Illustrative Examples 1 and 2: Heat Conduction and Linear Elasticity Part 3 |
63 |
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4.3 The Stability Constant |
64 |
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4.3.1 Min-?-approach |
65 |
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4.3.2 Multi-parameter Min-?-approach |
66 |
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4.3.3 Illustrative Example 1: Heat Conduction Part 4 |
66 |
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4.3.4 The Successive Constraint Method (SCM) |
68 |
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4.3.5 A Comparitive Discussion |
72 |
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References |
75 |
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5 The Empirical Interpolation Method |
76 |
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5.1 Motivation and Historical Overview |
76 |
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5.2 The Empirical Interpolation Method |
77 |
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5.3 EIM in the Context of the RBM |
81 |
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5.3.1 Non-affine Parametric Coefficients |
81 |
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5.3.2 Illustrative Example 1: Heat Conduction Part 5 |
83 |
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5.3.3 Illustrative Example 1: Heat Conduction Part 6 |
87 |
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References |
93 |
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6 Beyond the Basics |
95 |
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6.1 Time-Dependent Problems |
95 |
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6.1.1 Discretization |
96 |
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6.1.2 POD-greedy Sampling Algorithm |
98 |
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6.1.3 A Posteriori Error Bounds for the Parabolic Case |
100 |
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6.1.4 Illustrative Example 3: Time-Dependent Heat Conduction |
102 |
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6.2 Geometric Parametrization |
104 |
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6.2.1 Illustrative Example 4: A 2D Geometric Parametrization for an Electronic Cooling Component |
107 |
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6.2.2 Illustrative Example 5: A 3D Geometric Parametrization for a Thermal Fin |
111 |
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6.3 Non-compliant Output |
113 |
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6.3.1 Illustrative Example 6: A 2D Graetz Problem with Non-compliant Output |
115 |
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6.4 Non-coercive Problems |
118 |
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6.5 Illustrative Example 7: A 3D Parametrized Graetz Channel |
121 |
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References |
125 |
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Appendix A Mathematical Preliminaries |
127 |
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Index |
137 |
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