Discrete Linear Groups containing Arithmetic Groups

Jeudi 4 juin 2009 14:00-15:00 - Venkataramana Tyakal N. - TIFR, Bombay

Résumé : We show (in many cases) that a Zariski dense discrete subgroup of a simple real algebraic group $G$ containing an arithmetic subgroup of a simple algebraic group $H$ of real rank two, is a lattice in $G$ ;
In contrast, we show that if $G$ has rank one, then lattices in $H$ may be extended to non-lattice Zariski dense discrete subgroups of $G$.
This is joint work with Indira Chatterji.

Lieu : bât. 425 - 121-123

Discrete Linear Groups containing Arithmetic Groups  Version PDF
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