| Preface | 5 |
|---|
| References | 8 |
| Contents | 9 |
|---|
| Computation of Invariant Manifolds | 12 |
|---|
| A New Model Reduction Method for Nonlinear Dynamical Systems Using Singular PDE Theory | 13 |
| 1 Introduction | 13 |
| 2 Mathematical Preliminaries | 15 |
| 3 Main Results | 16 |
| 4 Conclusions | 23 |
| References | 23 |
| A Versatile Algorithm for Computing Invariant Manifolds | 26 |
| 1 Introduction | 26 |
| 2 Invariant Manifolds | 28 |
| 3 Discrete Sections | 33 |
| 4 The Discrete Graph Transform | 36 |
| 5 Numerical Implementation | 40 |
| 6 An Application | 43 |
| References | 44 |
| Covering an Invariant Manifold with Fat Trajectories | 47 |
| 1 Introduction | 47 |
| 2 Basic Definitions | 49 |
| 3 Fat Trajectories | 51 |
| 4 Flying Disks | 52 |
| 5 Interpolation | 56 |
| 6 Example | 57 |
| References | 61 |
| Ghost ILDM-Manifolds and Their Identification | 63 |
| 1 Introduction | 63 |
| 2 Theoretical Background | 64 |
| 3 Ghost ILDM-Manifolds Examples | 75 |
| 4 Criteria for Ghost -Manifolds Identification | 82 |
| 5 Conclusions | 85 |
| References | 85 |
| Dynamic Decomposition of ODE Systems: Application to Modelling of Diesel Fuel Sprays | 88 |
| 1 Introduction | 88 |
| 2 Dynamic Fast-Slow Decomposition: Underlying Philosophy | 90 |
| 3 Decomposition of the System of Equations | 92 |
| 4 Choice of Decomposition | 95 |
| 5 Application | 97 |
| 6 Conclusions | 102 |
| References | 102 |
| Model Reduction of Multiple Time Scale Processes in Non- standard Singularly Perturbed Form | 105 |
| 1 Introduction | 105 |
| 2 Standard Singularly Perturbed Form | 107 |
| 3 Nonstandard Singularly Perturbed Form | 109 |
| 4 Application | 114 |
| 5 Conclusion | 118 |
| References | 118 |
| Coarse-Graining and Ideas of Statistical Physics | 120 |
|---|
| Basic Types of Coarse-Graining | 121 |
| 1 Introduction | 121 |
| 2 The Ehrenfests’ Coarse-Graining | 127 |
| 3 Coarse-Graining by Filtering | 153 |
| 4 Errors of Models, e-trajectories and Stable Properties of Structurally Unstable Systems | 166 |
| 5 Conclusion | 173 |
| References | 175 |
| Renormalization Group Methods for Coarse- Graining of Evolution Equations | 181 |
| 1 Introduction and Basic Formalism | 181 |
| 2 RSRG for the Selection of Relevant Degrees of Freedom | 186 |
| 3 DMRG and the Time-Evolution of Strongly Correlated Many- Body Systems | 194 |
| 4 Conclusions | 207 |
| References | 207 |
| A Stochastic Process Behind Boltzmann’s Kinetic Equation and Issues of Coarse Graining | 211 |
| 1 Motivation and Problem | 211 |
| 2 Markov Processes | 214 |
| 3 Nonlinear Fokker-Planck Equations | 215 |
| 4 Boltzmann’s Kinetic Equation | 217 |
| 5 Boltzmann Process | 218 |
| 6 Gaussian Boltzmann Process | 220 |
| 7 Application: Diffusion Coefficient | 223 |
| 8 Perspectives | 225 |
| References | 226 |
| Finite Difference Patch Dynamics for Advection Homogenization Problems | 229 |
| 1 Introduction | 229 |
| 2 Model Problems | 233 |
| 3 Patch Dynamics | 234 |
| 4 Convergence Results | 237 |
| 5 Numerical Results for Advection Problems | 241 |
| 6 Conclusions | 248 |
| References | 248 |
| Coarse-Graining the Cyclic Lotka-Volterra Model: SSA and Local Maximum Likelihood Estimation | 251 |
| 1 Introduction | 251 |
| 2 The Lattice Lotka-Volterra Model | 252 |
| 3 Equation Free Computation | 253 |
| 4 Estimation Procedure | 254 |
| 5 Illustrations of Equation-Free Computation | 258 |
| 6 Discussion | 263 |
| References | 268 |
| Relations Between Information Theory, Robustness and Statistical Mechanics of Stochastic Uncertain Systems via Large Deviation Theory | 272 |
| 1 Introduction | 272 |
| 2 Thermodynamics and Statistical Mechanics | 276 |
| 3 Robustness of Stochastic Uncertain Systems: General Setting | 279 |
| 4 Robustness of Stochastic Uncertain Systems: an Energy Constraint Formulation | 281 |
| 5 Robustness of Stochastic Uncertain Systems: a Relative Entropy Constraint Formulation | 286 |
| 6 The Large Deviations Principle Applied to Diffusion Processes | 291 |
| 7 Conclusion | 293 |
| References | 293 |
| Kinetics and Model Reduction | 296 |
|---|
| Exactly Reduced Chemical Master Equations | 297 |
| 1 Introduction | 297 |
| 2 Stochastic Population Modeling and the Chemical Master Equation | 300 |
| 3 Methods and Results | 307 |
| 4 Conclusions | 314 |
| References | 315 |
| Model Reduction in Kinetic Theory | 318 |
| 1 Introduction | 318 |
| 2 Basic Kinetic Theory | 319 |
| 3 Chapman-Enskog Method | 321 |
| 4 Grad Moment Method | 323 |
| 5 Combining the Chapman-Enskog and Grad Methods | 325 |
| 6 Order of Magnitude Method | 327 |
| 7 Relations Between the Various Sets of Equations | 330 |
| 8 Applications | 331 |
| 9 Conclusions and Outlook | 337 |
| References | 339 |
| Novel Trajectory Based Concepts for Model and Complexity Reduction in ( Bio) Chemical Kinetics | 343 |
| 1 Introduction | 343 |
| 2 Model Reduction: Constrained Relaxation of Chemical Forces and Minimal Entropy Production Trajectories | 345 |
| 3 Complexity Reduction of Biochemical Reaction Networks | 352 |
| References | 362 |
| Dynamics of the Plasma Sheath | 365 |
| 1 Introduction | 365 |
| 2 The Euler Equations with Planar, Radical, and Spherical symmetry | 366 |
| 3 Collisional and Collisionless Plasmas | 366 |
| 4 Dynamics of the Plasma Sheath | 367 |
| 5 Generalization to Non-Symmetric Case | 369 |
| References | 371 |
| Mesoscale and Multiscale Modeling | 372 |
|---|
| Construction of Stochastic PDEs and Predictive Control of Surface Roughness in Thin Film Deposition | 373 |
| 1 Introduction | 373 |
| 2 Preliminaries | 375 |
| 3 Model Construction | 381 |
| 4 Predictive Control | 388 |
| 5 Conclusions | 397 |
|