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AuthorTreves, Franรงois. author
TitleLocally Convex Spaces and Linear Partial Differential Equations [electronic resource] / by Franรงois Treves
ImprintBerlin, Heidelberg : Springer Berlin Heidelberg, 1967
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Descript XII, 123 p. online resource


It is hardly an exaggeration to say that, if the study of general topologยญ ical vector spaces is justified at all, it is because of the needs of distribuยญ tion and Linear PDE * theories (to which one may add the theory of convolution in spaces of hoi om orphic functions). The theorems based on TVS ** theory are generally of the "foundation" type: they will often be statements of equivalence between, say, the existence - or the approxยญ imability -of solutions to an equation Pu = v, and certain more "formal" properties of the differential operator P, for example that P be elliptic or hyperboJic, together with properties of the manifold X on which P is defined. The latter are generally geometric or topological, e. g. that X be P-convex (Definition 20. 1). Also, naturally, suitable conditions will have to be imposed upon the data, the v's, and upon the stock of possible solutions u. The effect of such theorems is to subdivide the study of an equation like Pu = v into two quite different stages. In the first stage, we shall look for the relevant equivalences, and if none is already available in the literature, we shall try to establish them. The second stage will consist of checking if the "formal" or "geometric" conditions are satisfied


I. The Spectrum of a Locally Convex Space -- I. The Spectrum of a Locally Convex Space -- II. The Natural Fibration over the Spectrum -- III. Epimorphisms of Frรฉchet Spaces -- IV. Existence and Approximation of Solutions to a Functional Equation -- V. Translation into Duality -- II. Applications to Linear Partial Differential Equations -- VI. Applications of the Epimorphism Theorem -- VII. Applications of the Epimorphism Theorem to Partial Differential Equations with Constant Coefficients -- VIII. Existence and Approximation of Solutions to a Linear Partial Differential Equation -- IX. Existence and Approximation of Solutions to a Linear Partial Differential Equation -- Appendix A: Two Lemmas about Frรฉchet Spaces -- Appendix B: Normal Hilbert Spaces of Distributions -- Appendix C: On the Nonexistence of Continuous Right Inverses -- Main Definitions and Results Concerning the Spectrum of a Locally Convex Space -- Some Definitions in PDE Theory -- Bibliographical References

Mathematics Mathematical analysis Analysis (Mathematics) Partial differential equations Mathematics Analysis Partial Differential Equations


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