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Ordinary Differential Equations And Boundary Value Problems - Volume Ii: Boundary Value Problems (Paperback): John R. Graef,... Ordinary Differential Equations And Boundary Value Problems - Volume Ii: Boundary Value Problems (Paperback)
John R. Graef, Johnny L. Henderson, Lingju Kong, Sherry Xueyan Liu
R1,552 Discovery Miles 15 520 Ships in 10 - 15 working days

The authors give a systematic introduction to boundary value problems (BVPs) for ordinary differential equations. The book is a graduate level text and good to use for individual study. With the relaxed style of writing, the reader will find it to be an enticing invitation to join this important area of mathematical research. Starting with the basics of boundary value problems for ordinary differential equations, linear equations and the construction of Green's functions are presented clearly.A discussion of the important question of the existence of solutions to both linear and nonlinear problems plays a central role in this volume and this includes solution matching and the comparison of eigenvalues.The important and very active research area on existence and multiplicity of positive solutions is treated in detail. The last chapter is devoted to nodal solutions for BVPs with separated boundary conditions as well as for non-local problems.While this Volume II complements , it can be used as a stand-alone work.

Ordinary Differential Equations And Boundary Value Problems - Volume I: Advanced Ordinary Differential Equations (Paperback):... Ordinary Differential Equations And Boundary Value Problems - Volume I: Advanced Ordinary Differential Equations (Paperback)
John R. Graef, Johnny L. Henderson, Lingju Kong, Sherry Xueyan Liu
R1,029 Discovery Miles 10 290 Ships in 10 - 15 working days

The authors give a treatment of the theory of ordinary differential equations (ODEs) that is excellent for a first course at the graduate level as well as for individual study. The reader will find it to be a captivating introduction with a number of non-routine exercises dispersed throughout the book.The authors begin with a study of initial value problems for systems of differential equations including the Picard and Peano existence theorems. The continuability of solutions, their continuous dependence on initial conditions, and their continuous dependence with respect to parameters are presented in detail. This is followed by a discussion of the differentiability of solutions with respect to initial conditions and with respect to parameters. Comparison results and differential inequalities are included as well.Linear systems of differential equations are treated in detail as is appropriate for a study of ODEs at this level. Just the right amount of basic properties of matrices are introduced to facilitate the observation of matrix systems and especially those with constant coefficients. Floquet theory for linear periodic systems is presented and used to analyze nonhomogeneous linear systems.Stability theory of first order and vector linear systems are considered. The relationships between stability of solutions, uniform stability, asymptotic stability, uniformly asymptotic stability, and strong stability are examined and illustrated with examples as is the stability of vector linear systems. The book concludes with a chapter on perturbed systems of ODEs.

Ordinary Differential Equations And Boundary Value Problems - Volume Ii: Boundary Value Problems (Hardcover): John R. Graef,... Ordinary Differential Equations And Boundary Value Problems - Volume Ii: Boundary Value Problems (Hardcover)
John R. Graef, Johnny L. Henderson, Lingju Kong, Sherry Xueyan Liu
R2,540 Discovery Miles 25 400 Ships in 10 - 15 working days

The authors give a systematic introduction to boundary value problems (BVPs) for ordinary differential equations. The book is a graduate level text and good to use for individual study. With the relaxed style of writing, the reader will find it to be an enticing invitation to join this important area of mathematical research. Starting with the basics of boundary value problems for ordinary differential equations, linear equations and the construction of Green's functions are presented clearly.A discussion of the important question of the existence of solutions to both linear and nonlinear problems plays a central role in this volume and this includes solution matching and the comparison of eigenvalues.The important and very active research area on existence and multiplicity of positive solutions is treated in detail. The last chapter is devoted to nodal solutions for BVPs with separated boundary conditions as well as for non-local problems.While this Volume II complements , it can be used as a stand-alone work.

Ordinary Differential Equations And Boundary Value Problems - Volume I: Advanced Ordinary Differential Equations (Hardcover):... Ordinary Differential Equations And Boundary Value Problems - Volume I: Advanced Ordinary Differential Equations (Hardcover)
John R. Graef, Johnny L. Henderson, Lingju Kong, Sherry Xueyan Liu
R2,262 Discovery Miles 22 620 Ships in 10 - 15 working days

The authors give a treatment of the theory of ordinary differential equations (ODEs) that is excellent for a first course at the graduate level as well as for individual study. The reader will find it to be a captivating introduction with a number of non-routine exercises dispersed throughout the book.The authors begin with a study of initial value problems for systems of differential equations including the Picard and Peano existence theorems. The continuability of solutions, their continuous dependence on initial conditions, and their continuous dependence with respect to parameters are presented in detail. This is followed by a discussion of the differentiability of solutions with respect to initial conditions and with respect to parameters. Comparison results and differential inequalities are included as well.Linear systems of differential equations are treated in detail as is appropriate for a study of ODEs at this level. Just the right amount of basic properties of matrices are introduced to facilitate the observation of matrix systems and especially those with constant coefficients. Floquet theory for linear periodic systems is presented and used to analyze nonhomogeneous linear systems.Stability theory of first order and vector linear systems are considered. The relationships between stability of solutions, uniform stability, asymptotic stability, uniformly asymptotic stability, and strong stability are examined and illustrated with examples as is the stability of vector linear systems. The book concludes with a chapter on perturbed systems of ODEs.

Multiple Solutions Of Boundary Value Problems: A Variational Approach (Hardcover): John R. Graef, Lingju Kong Multiple Solutions Of Boundary Value Problems: A Variational Approach (Hardcover)
John R. Graef, Lingju Kong
R2,631 Discovery Miles 26 310 Ships in 12 - 17 working days

Variational methods and their generalizations have been verified to be useful tools in proving the existence of solutions to a variety of boundary value problems for ordinary, impulsive, and partial differential equations as well as for difference equations. In this monograph, we look at how variational methods can be used in all these settings. In our first chapter, we gather the basic notions and fundamental theorems that will be applied in the remainder of this monograph. While many of these items are easily available in the literature, we gather them here both for the convenience of the reader and for the purpose of making this volume somewhat self-contained. Subsequent chapters deal with the Sturm-Liouville problems, multi-point boundary value problems, problems with impulses, partial differential equations, and difference equations. An extensive bibliography is also included.

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