Cohomology of Congruence Subgroups of SU (2, 1)p and Hodge Cycles on Some Special Complex Hyperbolic Surfaces

  • Don Blasius
  • Jonathan Rogawski
Part of the Progress in Mathematics book series (PM, volume 171)


Let G be a semisimple algebraic group over a number field F and set G = ∏ vS Gv, where S is the set of archimedean places of F. As is well-known, the cohomology of a cocompact lattice Γ ⊂ G is expressed in terms of the decomposition
$${L^2}\left( {\Gamma \backslash {G_\infty }} \right) \simeq \hat \oplus m(\pi ,\Gamma )\pi $$


Tate Zink Wallach 


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Copyright information

© Springer Science+Business Media New York 2000

Authors and Affiliations

  • Don Blasius
    • 1
  • Jonathan Rogawski
    • 1
  1. 1.Department of MathematicsUniversity of California at Los AngelesLos AngelesUSA

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