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Identification Problems of Wave Phenomena : Theory and Numerics.

By: Contributor(s): Series: Inverse and Ill-Posed Problems SerPublisher: Berlin/Boston : De Gruyter, Inc., 1999Copyright date: ©1999Description: 1 online resource (352 pages)Content type:
  • text
Media type:
  • computer
Carrier type:
  • online resource
ISBN:
  • 9783110943290
Subject(s): Genre/Form: Additional physical formats: Print version:: Identification Problems of Wave Phenomena : Theory and NumericsLOC classification:
  • QA374.L67 1999
Online resources:
Contents:
Intro -- Introduction -- Chapter 1. Statements of the direct and inverse problems. Examples -- 1.1. Introduction -- 1.2. Inverse Problems of Mathematical Physics -- 1.3. Inverse problem for the wave equation -- 1.4. The equation of plane waves. The d'Alembert formula -- 1.5. The Cauchy problem -- 1.6. The d'Alembert operator with smooth initial data -- 1.7. The Kirchhoff and Poisson formulae -- 1.8. Huygens principle -- 1.9. Time-like and space-like surfaces -- 1.10. Inverse problems with smooth initial data -- 1.11. Inverse problem for the acoustic equation -- Chapter 2. Volterra operator equations -- 2.1. Main definitions -- 2.2. Local well-posedness -- 2.3. Well-posedness for sufficiently small data -- 2.4. Well-posedness in the neighborhood of the exact solution -- Chapter 3. Inverse problems for Maxwell's equations -- 3.1. Introduction -- 3.2. Reduction of inverse problem for Maxwell's equations to a Volterra operator equation -- 3.3. Local well-posedness and global uniqueness -- 3.4. Well-posedness in the neighborhood of the exact solution -- Chapter 4. Linearization and Newton-Kantorovich method -- 4.1. Linearization of Volterra operator equations -- 4.2. he linearized inverse problem for the wave equation -- 4.3. The Newton-Kantorovich method -- Chapter 5. The Gel'fand - Levitan Method -- 5.1. Introduction -- 5.2. Gel'fand-Levitan's approach to multidimensional inverse problems -- 5.3. Discrete inverse problems -- 5.4. Discrete direct problems -- 5.5. An auxiliary problem -- 5.6. A necessary condition for the existence of the global solution to the discrete inverse problem -- 5.7. Sufficient conditions for the existence of the global solution to the discrete inverse problem -- Chapter 6. Regularization -- 6.1. Introduction -- 6.2. Volterra regularization -- Chapter 7. The method of the optimal control -- 7.1. Introduction.
7.2. Discrete inverse problem -- 7.3. Special representation for the solution to the discrete direct problem -- 7.4. Uniqueness of the stationary point -- Chapter 8. Inversion of finite-difference schemes -- 8.1. Convergence of the method of inversion of finite-difference schemes -- 8.2. Picard and Caratheodory successive approximations -- Chapter 9. Strongly ill-posed problems -- 9.1. A strongly ill-posed problem for the Laplace equation -- 9.2. Conditional continuous dependence on the data -- 9.3. Approximate solutions to the Cauchy problem for the Laplace equation -- 9.4. Approximate solutions to the non-characteristic problem for the multidimensional heat equation -- 9.5. Existence of solutions satisfying operator inequalities -- Chapter 10. Identification problems related to first-order scalar semilinear equations -- 10.1. The scalar inverse problem -- Chapter 11. An identification problem for a first-order integro- differential equation -- 11.1. Introduction -- 11.2. The identification problem and its equivalence to a system of integral equations -- 11.3. Existence and uniqueness -- 11.4. Proof of Lemma 11.2.1 -- Chapter 12. An inverse hyperbolic integro-differential problem arising in Geophysics -- 12.1. Introduction and statement of the main result -- 12.2. The transformed inverse problem -- 12.3. Equivalence of problem (12.2.18)-(12.2.22) with a fixed-point system -- 12.4. Solving the fixed-point system (12.3.9)-(12.3.12) -- 12.5. Estimating the solution (z,p,q) to problem (12.3.9)-(12.3.12) -- 12.6. Proof of Theorem 12.1.1 -- Chapter 13. Integro-differential identification problems related to the one-dimensional wave equation -- 13.1. Introduction -- 13.2. Statement of the identification problem -- 13.3. The existence and uniqueness theorem -- Chapter 14. Lavrent'ev regularization of solutions to linear integro-differential inverse problems.
14.1. Introduction -- 14.2. Well-posedness of the linear inverse problem when g Є C3([0, T]) -- 14.3. A convergence theorem -- 14.4. An algorithm for a numerical solution -- 14.5. Basic properties of the cost function and its gradient -- Chapter 15. A stability result for the identification of a nonlinear term in a semilinear hyperbolic integro-differential equation -- 15.1. Introduction -- 15.2. Statements of the main results -- 15.3. Proof of Theorem 15.2.1 -- 15.4. Statement of the stability result -- 15.5. Proof of Theorem 15.4.1 -- Chapter 16. Inverse problems in Electromagnetoelasticity -- 16.1. Formulation of the direct and inverse problems -- 16.2. The optimization method for solving the inverse problem -- 16.3. The finite-difference schemes -- Bibliography.
Summary: The Inverse and Ill-Posed Problems Series is a series of monographs publishing postgraduate level information on inverse and ill-posed problems for an international readership of professional scientists and researchers. The series aims to publish works which involve both theory and applications in, e.g., physics, medicine, geophysics, acoustics, electrodynamics, tomography, and ecology.
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Intro -- Introduction -- Chapter 1. Statements of the direct and inverse problems. Examples -- 1.1. Introduction -- 1.2. Inverse Problems of Mathematical Physics -- 1.3. Inverse problem for the wave equation -- 1.4. The equation of plane waves. The d'Alembert formula -- 1.5. The Cauchy problem -- 1.6. The d'Alembert operator with smooth initial data -- 1.7. The Kirchhoff and Poisson formulae -- 1.8. Huygens principle -- 1.9. Time-like and space-like surfaces -- 1.10. Inverse problems with smooth initial data -- 1.11. Inverse problem for the acoustic equation -- Chapter 2. Volterra operator equations -- 2.1. Main definitions -- 2.2. Local well-posedness -- 2.3. Well-posedness for sufficiently small data -- 2.4. Well-posedness in the neighborhood of the exact solution -- Chapter 3. Inverse problems for Maxwell's equations -- 3.1. Introduction -- 3.2. Reduction of inverse problem for Maxwell's equations to a Volterra operator equation -- 3.3. Local well-posedness and global uniqueness -- 3.4. Well-posedness in the neighborhood of the exact solution -- Chapter 4. Linearization and Newton-Kantorovich method -- 4.1. Linearization of Volterra operator equations -- 4.2. he linearized inverse problem for the wave equation -- 4.3. The Newton-Kantorovich method -- Chapter 5. The Gel'fand - Levitan Method -- 5.1. Introduction -- 5.2. Gel'fand-Levitan's approach to multidimensional inverse problems -- 5.3. Discrete inverse problems -- 5.4. Discrete direct problems -- 5.5. An auxiliary problem -- 5.6. A necessary condition for the existence of the global solution to the discrete inverse problem -- 5.7. Sufficient conditions for the existence of the global solution to the discrete inverse problem -- Chapter 6. Regularization -- 6.1. Introduction -- 6.2. Volterra regularization -- Chapter 7. The method of the optimal control -- 7.1. Introduction.

7.2. Discrete inverse problem -- 7.3. Special representation for the solution to the discrete direct problem -- 7.4. Uniqueness of the stationary point -- Chapter 8. Inversion of finite-difference schemes -- 8.1. Convergence of the method of inversion of finite-difference schemes -- 8.2. Picard and Caratheodory successive approximations -- Chapter 9. Strongly ill-posed problems -- 9.1. A strongly ill-posed problem for the Laplace equation -- 9.2. Conditional continuous dependence on the data -- 9.3. Approximate solutions to the Cauchy problem for the Laplace equation -- 9.4. Approximate solutions to the non-characteristic problem for the multidimensional heat equation -- 9.5. Existence of solutions satisfying operator inequalities -- Chapter 10. Identification problems related to first-order scalar semilinear equations -- 10.1. The scalar inverse problem -- Chapter 11. An identification problem for a first-order integro- differential equation -- 11.1. Introduction -- 11.2. The identification problem and its equivalence to a system of integral equations -- 11.3. Existence and uniqueness -- 11.4. Proof of Lemma 11.2.1 -- Chapter 12. An inverse hyperbolic integro-differential problem arising in Geophysics -- 12.1. Introduction and statement of the main result -- 12.2. The transformed inverse problem -- 12.3. Equivalence of problem (12.2.18)-(12.2.22) with a fixed-point system -- 12.4. Solving the fixed-point system (12.3.9)-(12.3.12) -- 12.5. Estimating the solution (z,p,q) to problem (12.3.9)-(12.3.12) -- 12.6. Proof of Theorem 12.1.1 -- Chapter 13. Integro-differential identification problems related to the one-dimensional wave equation -- 13.1. Introduction -- 13.2. Statement of the identification problem -- 13.3. The existence and uniqueness theorem -- Chapter 14. Lavrent'ev regularization of solutions to linear integro-differential inverse problems.

14.1. Introduction -- 14.2. Well-posedness of the linear inverse problem when g Є C3([0, T]) -- 14.3. A convergence theorem -- 14.4. An algorithm for a numerical solution -- 14.5. Basic properties of the cost function and its gradient -- Chapter 15. A stability result for the identification of a nonlinear term in a semilinear hyperbolic integro-differential equation -- 15.1. Introduction -- 15.2. Statements of the main results -- 15.3. Proof of Theorem 15.2.1 -- 15.4. Statement of the stability result -- 15.5. Proof of Theorem 15.4.1 -- Chapter 16. Inverse problems in Electromagnetoelasticity -- 16.1. Formulation of the direct and inverse problems -- 16.2. The optimization method for solving the inverse problem -- 16.3. The finite-difference schemes -- Bibliography.

The Inverse and Ill-Posed Problems Series is a series of monographs publishing postgraduate level information on inverse and ill-posed problems for an international readership of professional scientists and researchers. The series aims to publish works which involve both theory and applications in, e.g., physics, medicine, geophysics, acoustics, electrodynamics, tomography, and ecology.

Description based on publisher supplied metadata and other sources.

Electronic reproduction. Ann Arbor, Michigan : ProQuest Ebook Central, 2019. Available via World Wide Web. Access may be limited to ProQuest Ebook Central affiliated libraries.

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