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- Studies in Applied and Numerical Mathematics
- Ill-Posed Problems for Integrodifferential Equations in Mechanics and Electromagnetic Theory

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1981 / ix + 222 pages / Hardcover / ISBN: 978-0-898711-71-4 / List Price $96.00 / SIAM Member Price $67.20 /** Order Code AM03**

Examines ill-posed, initial-history boundary-value problems associated with systems of partial-integrodifferential equations arising in linear and nonlinear theories of mechanical viscoelasticity, rigid nonconducting material dielectrics, and heat conductors with memory.

Variants of two differential inequalities, logarithmic convexity, and concavity are employed. Ideas based on energy arguments, Riemann invariants, and topological dynamics applied to evolution equations are also introduced.

These concepts are discussed in an introductory chapter and applied there to initial boundary value problems of linear and nonlinear diffusion and elastodynamics. Subsequent chapters begin with an explanation of the underlying physical theories. **Contents**

Ill-Posed Initial Boundary-Value Problems in Mathematical Physics: Examples of the Basic Logarithmic Convexity and Concavity Arguments for PDE; Ill-Posed Problems for the Partial-Integrodifferential Equations of Linear and Nonlinear Viscoelasticity; Ill-Posed Problems for Some Integrodifferential Equations of Electromagnetic Theory; Some Recent Directions in Research on Nonlinear Integrodifferential Equations.

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