Nonlinear Fokker-Planck Equations

Nonlinear Fokker-Planck Equations PDF Author: T.D. Frank
Publisher: Springer Science & Business Media
ISBN: 3540212647
Category : Science
Languages : en
Pages : 414

Book Description
Centered around the natural phenomena of relaxations and fluctuations, this monograph provides readers with a solid foundation in the linear and nonlinear Fokker-Planck equations that describe the evolution of distribution functions. It emphasizes principles and notions of the theory (e.g. self-organization, stochastic feedback, free energy, and Markov processes), while also illustrating the wide applicability (e.g. collective behavior, multistability, front dynamics, and quantum particle distribution). The focus is on relaxation processes in homogeneous many-body systems describable by nonlinear Fokker-Planck equations. Also treated are Langevin equations and correlation functions. Since these phenomena are exhibited by a diverse spectrum of systems, examples and applications span the fields of physics, biology and neurophysics, mathematics, psychology, and biomechanics.

Nonlinear Fokker-Planck Equations

Nonlinear Fokker-Planck Equations PDF Author: T.D. Frank
Publisher: Springer Science & Business Media
ISBN: 3540264779
Category : Science
Languages : en
Pages : 415

Book Description
Centered around the natural phenomena of relaxations and fluctuations, this monograph provides readers with a solid foundation in the linear and nonlinear Fokker-Planck equations that describe the evolution of distribution functions. It emphasizes principles and notions of the theory (e.g. self-organization, stochastic feedback, free energy, and Markov processes), while also illustrating the wide applicability (e.g. collective behavior, multistability, front dynamics, and quantum particle distribution). The focus is on relaxation processes in homogeneous many-body systems describable by nonlinear Fokker-Planck equations. Also treated are Langevin equations and correlation functions. Since these phenomena are exhibited by a diverse spectrum of systems, examples and applications span the fields of physics, biology and neurophysics, mathematics, psychology, and biomechanics.

Physical and Mathematical Aspects of Symmetries

Physical and Mathematical Aspects of Symmetries PDF Author: Sergio Duarte
Publisher: Springer
ISBN: 3319691643
Category : Science
Languages : en
Pages : 419

Book Description
This proceedings records the 31st International Colloquium on Group Theoretical Methods in Physics (“Group 31”). Plenary-invited articles propose new approaches to the moduli spaces in gauge theories (V. Pestun, 2016 Weyl Prize Awardee), the phenomenology of neutrinos in non-commutative space-time, the use of Hardy spaces in quantum physics, contradictions in the use of statistical methods on complex systems, and alternative models of supersymmetry. This volume’s survey articles broaden the colloquia’s scope out into Majorana neutrino behavior, the dynamics of radiating charges, statistical pattern recognition of amino acids, and a variety of applications of gauge theory, among others. This year’s proceedings further honors Bertram Kostant (2016 Wigner Medalist), as well as S.T. Ali and L. Boyle, for their life-long contributions to the math and physics communities. The aim of the ICGTMP is to provide a forum for physicists, mathematicians, and scientists of related disciplines who develop or apply methods in group theory to share their research. The 31st ICGTMP was held in Rio de Janeiro, Brazil, from June 19th to June 25th, 2016. This was the first time that a colloquium of the prestigious and traditional ICGTMP series (which started in 1972 in Marseille, France) took place in South America. (The history of the colloquia can be found at http://icgtmp.blogs.uva.es/)

The Fokker-planck Equation For Stochastic Dynamical Systems And Its Explicit Steady State Solutions

The Fokker-planck Equation For Stochastic Dynamical Systems And Its Explicit Steady State Solutions PDF Author: Christian Soize
Publisher: World Scientific
ISBN: 9814502022
Category : Mathematics
Languages : en
Pages : 345

Book Description
This is an analysis of multidimensional nonlinear dissipative Hamiltonian dynamical systems subjected to parametric and external stochastic excitations by the Fokker-Planck equation method.The author answers three types of questions concerning this area. First, what probabilistic tools are necessary for constructing a stochastic model and deriving the FKP equation for nonlinear stochastic dynamical systems? Secondly, what are the main results concerning the existence and uniqueness of an invariant measure and its associated stationary response? Finally, what is the class of multidimensional dynamical systems that have an explicit invariant measure and what are the fundamental examples for applications?

Fokker-Planck-Kolmogorov Equations

Fokker-Planck-Kolmogorov Equations PDF Author: Vladimir I. Bogachev
Publisher: American Mathematical Soc.
ISBN: 1470425580
Category : Mathematics
Languages : en
Pages : 495

Book Description
This book gives an exposition of the principal concepts and results related to second order elliptic and parabolic equations for measures, the main examples of which are Fokker-Planck-Kolmogorov equations for stationary and transition probabilities of diffusion processes. Existence and uniqueness of solutions are studied along with existence and Sobolev regularity of their densities and upper and lower bounds for the latter. The target readership includes mathematicians and physicists whose research is related to diffusion processes as well as elliptic and parabolic equations.

Asymptotic Methods for the Fokker-Planck Equation and the Exit Problem in Applications

Asymptotic Methods for the Fokker-Planck Equation and the Exit Problem in Applications PDF Author: Johan Grasman
Publisher: Springer Science & Business Media
ISBN: 9783540644354
Category : Mathematics
Languages : en
Pages : 242

Book Description
Asymptotic methods are of great importance for practical applications, especially in dealing with boundary value problems for small stochastic perturbations. This book deals with nonlinear dynamical systems perturbed by noise. It addresses problems in which noise leads to qualitative changes, escape from the attraction domain, or extinction in population dynamics. The most likely exit point and expected escape time are determined with singular perturbation methods for the corresponding Fokker-Planck equation. The authors indicate how their techniques relate to the Itô calculus applied to the Langevin equation. The book will be useful to researchers and graduate students.

The Fokker-Planck Equation

The Fokker-Planck Equation PDF Author: Hannes Risken
Publisher: Springer Science & Business Media
ISBN: 3642615449
Category : Mathematics
Languages : en
Pages : 486

Book Description
This is the first textbook to include the matrix continued-fraction method, which is very effective in dealing with simple Fokker-Planck equations having two variables. Other methods covered are the simulation method, the eigen-function expansion, numerical integration, and the variational method. Each solution is applied to the statistics of a simple laser model and to Brownian motion in potentials. The whole is rounded off with a supplement containing a short review of new material together with some recent references. This new study edition will prove to be very useful for graduate students in physics, chemical physics, and electrical engineering, as well as for research workers in these fields.

PDE Models for Multi-Agent Phenomena

PDE Models for Multi-Agent Phenomena PDF Author: Pierre Cardaliaguet
Publisher: Springer
ISBN: 3030019470
Category : Mathematics
Languages : en
Pages : 225

Book Description
This volume covers selected topics addressed and discussed during the workshop “PDE models for multi-agent phenomena,” which was held in Rome, Italy, from November 28th to December 2nd, 2016. The content mainly focuses on kinetic equations and mean field games, which provide a solid framework for the description of multi-agent phenomena. The book includes original contributions on the theoretical and numerical study of the MFG system: the uniqueness issue and finite difference methods for the MFG system, MFG with state constraints, and application of MFG to market competition. The book also presents new contributions on the analysis and numerical approximation of the Fokker-Planck-Kolmogorov equations, the isotropic Landau model, the dynamical approach to the quantization problem and the asymptotic methods for fully nonlinear elliptic equations. Chiefly intended for researchers interested in the mathematical modeling of collective phenomena, the book provides an essential overview of recent advances in the field and outlines future research directions.

Stochastic Calculus and Differential Equations for Physics and Finance

Stochastic Calculus and Differential Equations for Physics and Finance PDF Author: Joseph L. McCauley
Publisher: Cambridge University Press
ISBN: 0521763401
Category : Business & Economics
Languages : en
Pages : 219

Book Description
Provides graduate students and practitioners in physics and economics with a better understanding of stochastic processes.

Hypocoercivity

Hypocoercivity PDF Author: CŽdric Villani
Publisher: American Mathematical Soc.
ISBN: 0821844989
Category : Mathematics
Languages : en
Pages : 154

Book Description
This memoir attempts at a systematic study of convergence to stationary state for certain classes of degenerate diffusive equations, taking the general form ${\frac{\partial f}{\partial t}}+ L f =0$. The question is whether and how one can overcome the degeneracy by exploiting commutators.