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Nonlinear Reaction-Diffusion-Convection Equations: Lie and Conditional Symmetry, Exact Solutions and Their Applications de Roman Cherniha

Nonlinear Reaction-Diffusion-Convection Equations: Lie and Conditional Symmetry, Exact Solutions and Their Applications: Chapman & Hall/CRC Monographs and Research Notes in Mathematics

Autor Roman Cherniha, Mykola Serov, Oleksii Pliukhin
en Limba Engleză Hardback – 19 oct 2017
It is well known that symmetry-based methods are very powerful tools for investigating nonlinear partial differential equations (PDEs), notably for their reduction to those of lower dimensionality (e.g. to ODEs) and constructing exact solutions. This book is devoted to (1) search Lie and conditional (non-classical) symmetries of nonlinear RDC equations, (2) constructing exact solutions using the symmetries obtained, and (3) their applications for solving some biologically and physically motivated problems. The book summarises the results derived by the authors during the last 10 years and those obtained by some other authors.
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Specificații

ISBN-13: 9781498776172
ISBN-10: 1498776175
Pagini: 260
Ilustrații: 15 Tables, black and white; 18 Illustrations, black and white
Dimensiuni: 156 x 234 x 19 mm
Greutate: 0.5 kg
Ediția:1
Editura: CRC Press
Colecția Chapman and Hall/CRC
Seria Chapman & Hall/CRC Monographs and Research Notes in Mathematics

Cuprins

1. Introduction. 2. Lie symmetries of reaction-diffusion-convection equations. 3. Conditional symmetries of reaction-diffusion-convection equations. 4. Exact solutions of reaction-diffusion-convection equations. 5. Method additional generating conditions for constructing exact solutions. 6. Concluding remarks.

Recenzii

"This work is devoted to an in-depth study of Lie and nonclassical (called Q-conditional) symmetries for nonlinear Reaction-Di usion-Convection (RDC) equations. This type of PDEs is ubiquitous in many fields of applications, and many models for describing natural phenomena such as heat transfer, filtration of liquids, di usion in chemical reactions, or bio-medical processes lead to equations of this type. Clearly, the determination of exact solutions is an integral part of gaining an understanding of such models, and symmetry methods are a key technique in this endeavour. Since a number of nonlinear RDC equations have a quite small Lie transformation group of symmetries, more refined methods, like Q-conditional symmetries, are typically the method of choice. The authors are among the leading researchers in this field and have collected in this book many results they have obtained over the past decades. Chapter 1 gives a general introduction to nonlinear RDC equations as well as a brief recapitulation of the determination of Lie symmetries for PDEs. This is applied in Chapter 2 to the complete description of Lie symmetries of RDC equations. Particular emphasis is put on equivalence and form-preserving transformations, which are consistently employed to enhance the classical algorithm for determining Lie symmetries. In Chapter 3, after a brief introduction to the topic of conditional symmetries, Q-conditional symmetries are studied and are determined explicitly for a number of relevant classes (in particular, power-law and exponential-law di usivity). Chapter 4 is devoted to determining exact solutions of RDC equations of the general form
ut = [A(u)ux]x +B(u)ux +C(u):
Explicit solutions are derived for relevant types of such PDEs (e.g., Fisher and Murray and FitzHugh-Nagumo), and the cases of power-law and exponential di usivity are studied in detail. The final Chapter 5 introduces the method of additional generating conditions for constructing exact solutions. This carefully written book collects many results that had previously only been available in the journal literature in a unified and applicable manner. As such it is a most welcome addition to the literature on symmetry methods for di erential equations."
- Michael Kunzinger - Mathematical Reviews Clippings February 2019

Notă biografică

Roman Cherniha is a professor at the Institute of Mathematics, National Academy of Sciences, Ukraine. His main areas of interest are Non-linear PDEs: Lie and conditional symmetries, exact solutions and their properties  and the application of modern methods for analytical solving nonlinear boundary value problems. He is the author of over 100 scientific papers and has acted as the referee for several international scientific journals.
Mykola I. Serov is a professor at the National Technical University, Ukraine. His main areas of interest at Lie symmetries of partial differential equations (PDEs), Conditional symmetries of PDEs and nonlocal symmetries of PDEs. He has authored over 60 scientific papers and published 6 Monographs (in Ukrainian).
Oleksii H. Pliukhin is an associate professor at the National Technical University, Ukraine. His main areas of interest are Lie symmetries of partial differential equations (PDEs), Conditional symmetries of PDEs and exact soutions and their properties of PDEs. He has participated in many scientific conferences and workshops, and published 13 scientific papers.
 
 

Descriere

This book is devoted to (1) search Lie and conditional (non-classical) symmetries of nonlinear RDC equations, (2) constructing exact solutions using the symmetries obtained, and (3) their applications for solving some biologically and physically motivated problems.