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AuthorGaier, Dieter. author
TitleLectures on Complex Approximation [electronic resource] / by Dieter Gaier
ImprintBoston, MA : Birkhรคuser Boston : Imprint: Birkhรคuser, 1987
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Descript XVI, 196 p. online resource


The theory of General Relativity, after its invention by Albert Einstein, remained for many years a monument of mathematiยญ cal speculation, striking in its ambition and its formal beauty, but quite separated from the main stream of modern Physics, which had centered, after the early twenties, on quantum mechanics and its applications. In the last ten or fifteen years, however, the situation has changed radically. First, a great deal of significant experẽnยญ tal data became available. Then important contributions were made to the incorporation of general relativity into the framework of quantum theory. Finally, in the last three years, exciting develยญ opments took place which have placed general relativity, and all the concepts behind it, at the center of our understanding of parยญ ticle physics and quantum field theory. Firstly, this is due to the fact that general relativity is really the "original non-abeยญ lian gauge theory," and that our description of quantum field inยญ teractions makes extensive use of the concept of gauge invariance. Secondly, the ideas of supersymmetry have enabled theoreticians to combine gravity with other elementary particle interactions, and to construct what is perhaps the first approach to a more finite quantum theory of gravitation, which is known as superยญ gravity


I: Approximation by Series Expansions and by Interpolation -- I. Representation of complex functions by orthogonal series and Faber series -- II. Approximation by interpolation -- II: General Approximation Theorems in the Complex Plane -- III. Approximation on compact sets -- IV. Approximation on closed sets -- References.ย ย ย 

Mathematics Approximation theory Functions of complex variables Mathematics Approximations and Expansions Functions of a Complex Variable


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