Description

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After Pyatetski-Shapiro PS1] and Satake Sa1] introduced, independent of one another, an early form of the Jacobi Theory in 1969 (while not naming it as such), this theory was given a de?nite push by the book The Theory of Jacobi Forms by Eichler and Zagier in 1985. Now, there are some overview articles describing the developments in the theory of the Jacobigroupandits autom- phic forms, for instance by Skoruppa Sk2], Berndt Be5] and Kohnen Ko]. We refertotheseformorehistoricaldetailsandmanymorenamesofauthorsactive inthistheory, whichstretchesnowfromnumbertheoryandalgebraicgeometry to theoretical physics. But let us only brie?y indicate several- sometimes very closely related - topics touched by Jacobi theory as we see it: - ?eldsofmeromorphicandrationalfunctionsontheuniversalellipticcurve resp. universal abelian variety - structure and projective embeddings of certain algebraic varieties and homogeneous spaces - correspondences between di?erent kinds of modular forms - L-functions associated to di?erent kinds of modular forms and autom- phic representations - induced representations - invariant di?erential operators - structure of Hecke algebras - determination of generalized Kac-Moody algebras and as a ?nal goal related to the here ?rst mentioned - mixed Shimura varieties and mixed motives. Now, letting completely aside the arithmetical and algebraic geometrical - proach to Jacobi forms developed and instrumentalized by Kramer Kr], we ix x Introduction will treat here a certain representation theoretic point of view for the Jacobi theory parallel to the theory of Jacquet-Langlands JL] for GL(2) as reported by Godement Go2], Gelbart Ge1] and, recently, Bump Bu].

About the Author

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Rolf Berndt is a Professor of Mathematics at the University of Hamburg. Ralf Schmidt is a Professor of Mathematics at the University of Oklahoma, Norman, OK, USA.