Preface |
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iv | |
Contributors |
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xiii | |
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1 All-At-Once Formulation Meets the Bayesian Approach: A Study of Two Prototypical Linear Inverse Problems |
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1 | (44) |
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1 | (4) |
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3 | (2) |
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1.2 Function Space Setting and Computation of Adjoints |
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5 | (3) |
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1.2.1 Inverse Source Problem |
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5 | (1) |
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1.2.2 Backwards Heat Problem |
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6 | (2) |
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1.3 Analysis of the Eigenvalues |
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8 | (11) |
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1.3.1 Inverse Source Problem |
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10 | (1) |
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1.3.1.1 Analytic Computation of the Eigenvalues |
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10 | (1) |
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1.3.1.2 Numerical Computation of the Eigenvalues |
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11 | (1) |
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1.3.2 Backwards Heat Equation |
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12 | (2) |
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1.3.2.1 Analytic Computation of the Eigenvalues |
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14 | (2) |
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1.3.2.2 Numerical Computation of the Eigenvalues |
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16 | (3) |
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19 | (4) |
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1.4.1 Fulfillment of the Link Condition for the All-At-Once-Formulation |
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22 | (1) |
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1.5 Choice of Joint Priors |
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23 | (6) |
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1.5.1 Block Diagonal Priors Satisfying Unilateral Link Estimates |
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23 | (3) |
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1.5.2 Heuristic Choice of C0 for the Backwards Heat Problem |
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26 | (2) |
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1.5.3 Priors for the Inverse Source Problem |
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28 | (1) |
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1.5.4 Prior for the State Variable of the Backwards Heat Problem |
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28 | (1) |
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1.6 Numerical Experiments |
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29 | (11) |
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1.6.1 Lagrangian Method for Computing the Adjoint Based Hessian and Gradient |
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30 | (3) |
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1.6.1.1 Inverse Source Problem |
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33 | (1) |
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1.6.1.2 Backwards Heat Problem |
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33 | (1) |
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34 | (1) |
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1.6.2.1 Inverse Source Problem |
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35 | (1) |
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1.6.2.2 Backwards Heat Equation, Sampled Initial Condition |
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36 | (2) |
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1.6.2.3 Backwards Heat Equation, Chosen Initial Condition |
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38 | (1) |
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1.6.2.4 Backwards Heat Equation, Chosen Initial Condition, Prior Motivated by the Link Condition |
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39 | (1) |
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1.7 Conclusions and Remarks |
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40 | (5) |
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42 | (3) |
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2 On Iterated Tikhonov Kaczmarz Type Methods for Solving Systems of Linear Ill-posed Operator Equations |
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45 | (16) |
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45 | (3) |
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2.2 A Range-relaxed Iterated Tikhonov Kaczmarz Method |
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48 | (6) |
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49 | (1) |
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2.2.2 Description of the Method |
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49 | (2) |
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2.2.3 Preliminary Results |
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51 | (3) |
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2.3 A Convergence Result for Exact Data |
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54 | (1) |
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2.4 Numerical Experiments |
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55 | (2) |
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57 | (4) |
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59 | (2) |
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3 On Numerical Approximation of Optimal Control for Stokes Hemivariational Inequalities |
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61 | (18) |
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61 | (2) |
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3.2 Notation and Preliminaries |
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63 | (1) |
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3.3 Stokes Hemivariational Inequality and Optimal Control |
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64 | (3) |
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3.4 Numerical Approximation of the Optimal Control Problem |
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67 | (12) |
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76 | (3) |
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4 Nonlinear Tikhonov Regularization in Hilbert Scales with Oversmoothing Penalty: Inspecting Balancing Principles |
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79 | (33) |
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79 | (3) |
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4.1.1 Hilbert Scales with Respect to an Unbounded Operator |
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80 | (1) |
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4.1.2 Tikhonov Regularization with Smoothness Promoting Penalty |
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80 | (1) |
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81 | (1) |
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4.1.4 Goal of the Present Study |
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82 | (1) |
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4.2 General Error Estimate for Tikhonov Regularization in Hilbert Scales with Oversmoothing Penalty |
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82 | (3) |
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4.2.1 Smoothness in Terms of Source Conditions |
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83 | (1) |
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4.2.2 Error Decomposition |
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83 | (2) |
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85 | (12) |
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86 | (1) |
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4.3.2 The Balancing Principles: Setup and Formulation |
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87 | (6) |
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93 | (3) |
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4.3.4 Specific Impact on Oversmoothing Penalties |
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96 | (1) |
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4.4 Exponential Growth Model: Properties and Numerical Case Study |
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97 | (15) |
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97 | (6) |
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4.4.2 Numerical Case Study |
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103 | (6) |
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109 | (3) |
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5 An Optimization Approach to Parameter Identification in Variational Inequalities of Second Kind-II |
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112 | (19) |
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112 | (2) |
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5.2 Some Variational Inequalities and an Abstract Framework for Parameter Identification |
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114 | (2) |
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5.3 The Regularization Procedure |
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116 | (5) |
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5.3.1 Smoothing the Modulus Function |
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116 | (2) |
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5.3.2 Regularizing the VI of Second Kind |
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118 | (3) |
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5.3.3 An Estimate of the Regularization Error |
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121 | (1) |
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5.4 The Optimization Approach |
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121 | (5) |
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5.5 Concluding Remarks---An Outlook |
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126 | (5) |
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128 | (3) |
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6 Generalized Variational-hemivariational Inequalities in Fuzzy Environment |
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131 | (19) |
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131 | (2) |
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6.2 Mathematical Prerequisites |
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133 | (2) |
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6.3 Fuzzy Variational-hemivariational Inequalities |
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135 | (8) |
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6.4 Optimal Control Problem |
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143 | (7) |
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147 | (3) |
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7 Boundary Stabilization of the Linear MGT Equation with Feedback Neumann Control |
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150 | (20) |
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150 | (6) |
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7.1.1 The Linearized PDE Model with Space-dependent Viscoelasticity |
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152 | (1) |
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7.1.2 Main Results and Discussion |
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153 | (3) |
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7.2 Wellposedness: Proof of Theorem 7.1.2 |
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156 | (14) |
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7.2.1 Stabilization in H: Proof of Theorem 7.1.5 |
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159 | (6) |
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165 | (5) |
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8 Sweeping Process Arguments in the Analysis and Control of a Contact Problem |
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170 | (27) |
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170 | (2) |
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8.2 Notation and Preliminaries |
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172 | (3) |
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175 | (4) |
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8.4 An Existence and Uniqueness Result |
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179 | (4) |
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8.5 A Continuous Dependence Result |
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183 | (5) |
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8.6 An Optimal Control Problem |
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188 | (4) |
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192 | (5) |
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194 | (3) |
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9 Anderson Acceleration for Degenerate and Nondegenerate Problems |
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197 | (20) |
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197 | (3) |
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9.1.1 Mathematical Setting and Algorithm |
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198 | (1) |
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9.1.2 The Nondegeneracy Condition |
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199 | (1) |
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9.2 Nondegenerate Problems |
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200 | (5) |
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9.2.1 Relating Residuals to Differences Between Consecutive Iterates |
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202 | (1) |
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9.2.2 Full Residual Bound |
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203 | (1) |
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9.2.3 Numerical Examples (Nondegenerate) |
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204 | (1) |
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205 | (8) |
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206 | (1) |
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9.3.2 Methods for Higher-order Roots |
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207 | (1) |
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9.3.3 Analysis of the AA-Newton Rootfinding Method |
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208 | (3) |
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9.3.4 Numerical Examples (Degenerate) |
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211 | (1) |
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212 | (1) |
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212 | (1) |
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213 | (4) |
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214 | (3) |
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10 Approximate Coincidence Points for Single-valued Maps and Aubin Continuous Set-valued Maps |
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217 | (24) |
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217 | (2) |
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219 | (3) |
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10.3 Coincidence and Approximate Coincidence Points of Single-valued Maps |
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222 | (6) |
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10.4 An Application: Parametric Abstract Systems of Equations |
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228 | (3) |
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10.5 Approximate Local Contraction Mapping Principle and ε-Fixed Points |
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231 | (2) |
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10.6 Lyusternik-Graves Theorem and e-Fixed Points for Aubin Continuous Set-valued Maps |
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233 | (8) |
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239 | (2) |
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11 Stochastic Variational Approach for Random Cournot-Nash Principle |
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241 | (29) |
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241 | (2) |
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243 | (5) |
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248 | (2) |
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11.4 The Infinite-dimensional Duality Theory |
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250 | (1) |
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11.5 The Lagrange Formulation of the Random Model |
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251 | (7) |
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258 | (4) |
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262 | (4) |
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266 | (4) |
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267 | (3) |
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12 Augmented Lagrangian Methods For Optimal Control Problems Governed by Mixed Variational-Hemivariational Inequalities Involving a Set-valued Mapping |
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270 | (33) |
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270 | (2) |
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12.2 Problem Statement and Preliminaries |
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272 | (7) |
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12.3 Existence Results for Solutions |
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279 | (6) |
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285 | (8) |
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12.5 Application to Optimal Control of a Frictional Contact Problem |
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293 | (4) |
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12.6 Remarks and Comments |
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297 | (6) |
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299 | (4) |
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13 Data Driven Reconstruction Using Frames and Riesz Bases |
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303 | (16) |
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303 | (1) |
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13.2 Gram-Schmidt Orthonormalization |
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304 | (2) |
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306 | (1) |
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13.3 Basics on Frames and Riesz-Bases |
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306 | (2) |
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13.4 Data Driven Regularization by Frames and Riesz Bases |
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308 | (2) |
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309 | (1) |
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13.5 Numerical Experiments |
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310 | (5) |
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13.5.1 Orthonormalization Procedures |
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311 | (2) |
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13.5.2 Comparison Between Frames and Decomposition Algorithms |
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313 | (2) |
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315 | (4) |
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317 | (2) |
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14 Antenna Problem Induced Regularization and Sampling Strategies |
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319 | (35) |
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14.1 Uni-Variate Antenna Problem Induced Recovery Strategies |
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319 | (8) |
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14.2 Multi-Variate Antenna Problem Induced Recovery Strategies |
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327 | (27) |
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345 | (9) |
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15 An Equation Error Approach for Identifying a Random Parameter in a Stochastic Partial Differential Equation |
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354 | (25) |
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354 | (2) |
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15.2 Solvability of the Direct Problem |
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356 | (4) |
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15.3 Numerical Techniques for Stochastic PDEs |
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360 | (2) |
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15.3.1 Monte Carlo Finite Element Type Methods |
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360 | (1) |
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15.3.2 The Stochastic Collocation Method |
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361 | (1) |
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15.3.3 The Stochastic Galerkin Method |
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361 | (1) |
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15.4 An Equation Error Approach |
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362 | (2) |
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364 | (5) |
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15.6 Computational Experiments |
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369 | (3) |
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372 | (7) |
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374 | (5) |
Index |
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