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Cohomology of Drinfeld Modular Varieties

Part 2. Automorphic Forms, Trace Formulas and Langlands Correspondence


Part of Cambridge Studies in Advanced Mathematics

  • Date Published: April 2009
  • availability: Available
  • format: Paperback
  • isbn: 9780521109901

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About the Authors
  • Cohomology of Drinfeld Modular Varieties provides an introduction, in two volumes, both to this subject and to the Langlands correspondence for function fields. These varieties are the analogues for function fields of the Shimura varieties over number fields. The Langlands correspondence is a conjectured link between automorphic forms and Galois representations over a global field. By analogy with the number-theoretic case, one expects to establish the conjecture for function fields by studying the cohomology of Drinfeld modular varieties, which has been done by Drinfeld himself for the rank two case. This second volume is concerned with the Arthur-Selberg trace formula, and with the proof in some cases of the Rmamanujan-Petersson conjecture and the global Langlands conjecture for function fields. It is based on graduate courses taught by the author, who uses techniques which are extensions of those used to study Shimura varieties. Though the author considers only the simpler case of function rather than number fields, many important features of the number field case can be illustrated. Several appendices on background material keep the work reasonably self-contained. It is the first book on this subject and will be of much interest to all researchers in algebraic number theory and representation theory.

    • Modern view of the subject - includes the Langlands correspondence
    • Author is well placed to write
    • Based on graduate courses in USA
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    Product details

    • Date Published: April 2009
    • format: Paperback
    • isbn: 9780521109901
    • length: 380 pages
    • dimensions: 229 x 152 x 22 mm
    • weight: 0.55kg
    • availability: Available
  • Table of Contents

    9. Trace of fA on the discrete spectrum
    10. Non-invariant Arthur trace formula: the geometric side
    11. Non-invariant Arthur trace formula: the spectral side
    12. Cohomology with compact supports of Drinfeld modular varieties
    13. Intersection cohomology of Drinfeld modular varieties
    Appendix D. Representations of unimodular, locally compact, totally discontinuous, separated topological groups: addendum
    Appendix E. Reduction theory and strong approximation
    Appendix F. Proof of lemma 10. 6. 4
    Appendix G. The decomposition of L2G following the cuspidal data.

  • Author

    Gérard Laumon, Université de Paris XI

    Appendix by

    Jean Loup Waldspurger

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