Generalized Functions and Partial Differential Equations

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1 Linear Topological Spaces 1. Topological spaces and metric spaces 2. Linear topological spaces 3. Countably normed spaces 4. Continuous linear functionals 5. Weak and strong topologies 6. Perfect spaces 7. Linear operators 8. Inductive limits and unions of topological spaces Problems 2 Spaces of Generalized Functions 1. Fundamental spaces and generalized functions 2. The spaces K{Mp} 3. The spaces Z{Mp} 4. Multiplication and the derivatives of generalized functions 5. Structure of generalized functions on K{Mp} Problems 3 Theory of Distributions 1. Spaces of functions 2. Partition of unity 3. Definition and some properties of distributions 4. Derivatives of distributions 5.-6. Structure of distributions 7. Distributions having support on compact sets or on subspaces 8. Tensor product of distributions 9. Product of distributions by functions Applications to differential equations 10. Convolutions of distributions 11. Convolutions of distributions with smooth functions 12. The spaces Kr{Mp}, {DLr} and the structure of their generalized functions 13. Convolution equations 14. The spaces (S) and (S') 15. Fourier transforms of distributions Problems 4 Convolutions and Fourier Transforms of Generalized Functions 1. Fourier transforms of fundamental functions 2. Fourier transforms of generalized functions 3. Convolutions of generalized functions 4. The convolution theorems Problems 5 W Spaces 1. Theorems on complex analytic functions 2. Definition of W spaces 3. Operators in W spaces 4. Fourier transforms of W spaces 5. Nontriviality and richness of W spaces Problems 6 Fourier Transforms of Entire Functions 1. Entire functions of order equal or less than p and of fast decrease 2. Entire functions of order equal or less than 1 3. Entire functions of order equal or less than 1 and of slow increase 4. Entire functions of order equal or less than p and of slow increase 5. Entire functions of order equal or less than p and of mildly fast increase 6. Entire functions of order equal or less than p and of fast increase 7. Proof of Lemma 2 Problems 7 The Cauchy Problem for Systems of Partial Differential Equations 1. Systems of partial differential equations and the Cauchy problem 2. Auxiliary theorems on functions of matrices 3. Uniqueness of solutions of the Cauchy problem 4. Existence of generalized solutions 5. Lemmas on convolutions 6. Existence theorems for parabolic systems 7. An existence theorem for hyperbolic systems 8. Existence theorems for correctly posed systems 9. Existence theorems for mildly incorrectly posed systems 10. An existence theorem for incorrectly posed systems 11. Nonhomogeneous systems with time-dependent coefficients 12. Systems of convolution equations 13. Difference-differential equations 14. Inverse theorems 15. Proof of the Seidenberg-Tarski theorem Problems 8 The Cauchy Problem in Several Time Variables 1. Uniqueness and existence of generalized solutions 2. Sobolev's lemma 3. Proof of Theorem 4. Existence of classical solutions 5. The Goursat problem Problems 9 S Spaces 1. Definition of S spaces 2. Operators in S spaces 3. Fourier transforms of S spaces 4. Nontriviality and richness of S spaces Problems 10 Further Applications to Partial Differential Equations 1. A Phragmen-Lindelof type theorem 2. A Liouville type theorem 3. Fundamental solutions of equations with constant coefficients 4. Special distributions and Radon's problem 5. Fundamental solutions for hyperbolic equations Problems 11 Differentiability of Solutions of Partial Differential Equations 1. Hypoelliptic equations and their fundamental solutions 2.-3. Conditions for hypoellipticity 4. Examples of hypoelliptic equations 5. Nonhomogeneous equations Problems Bibliographical Remarks Bibliography Index for Spaces Index

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