Arithmeticity in the Theory of Automorphic Forms

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American Mathematical Society, 2000 - Mathematics - 302 pages
The main objects of study in this book are Eisenstein series and zeta functions associated with Hecke eigenforms on symplectic and unitary groups. After preliminaries--including a section, "Notation and Terminology"--the first part of the book deals with automorphic forms on such groups. In particular, their rationality over a number field is defined and discussed in connection with the group action; also the reciprocity-law for the values of automorphic functions at CM-points is proved. Next, certain differential operators that raise the weight are investigated in higher dimension. The notion of nearly holomorphic functions is introduced, and their arithmeticity is defined. As applications of these, the arithmeticity of the critical values of zeta functions and Eisenstein series is proved. Though the arithmeticity is given as the ultimate main result, the book discusses many basic problems that arise in number-theoretical investigations of automorphic forms but that cannot be found in expository forms. Examples of this include the space of automorphic forms spanned by cusp forms and certain Eisenstein series, transformation formulas of theta series, estimate of the Fourier coefficients of modular forms, and modular forms of half-integral weight. All these are treated in higher-dimensional cases. The volume concludes with an Appendix and an Index. The book will be of interest to graduate students and researchers in the field of zeta functions and modular forms.

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About the author (2000)

Goro Shimura was born in Hamamatsu, Japan on February 23, 1930. He received a bachelor's degree in 1952 and a doctorate in 1958 from the University of Tokyo. He taught at the University of Tokyo and Osaka University before becoming a visiting professor at Princeton University in 1962. He was a professor at Princeton from 1964 until his retirement in 1999. As a mathematician, his insights provided the foundation for the proof of Fermat's Last Theorem and led to tools widely used in modern cryptography. He wrote more than 100 papers and books including one about Imari porcelain. His memoir, The Map of My Life, was published in 2008. He received several awards including a Guggenheim Fellowship in 1979, the Cole Prize for number theory in 1976, the Asahi Prize in 1991, and the American Mathematical Society's Steele Prize for lifetime achievement in 1996. He died on May 3, 2019 at the age of 89.

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