ENGLISH

A canonical arithmetic quotient for actions of lattices in simple groups

By David Fisher

Book information

Year
2007
Language
english
Format
PDF
Filesize
611 kB (625650 bytes)
Pages
13\13
Library
mexmat
Time added
2009-11-09 02:42:13

Description

In this paper we produce an invariant for any ergodic, finite entropy action of a lattice in a simple Lie group on a finite measure space. The invariant is essentially an equivalence class of measurable quotients of a certain type. The quotients are essentially double coset spaces and are constructed from a Lie group, a compact subgroup of the Lie group, and a commensurability class of lattices in the Lie group.

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