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The metric theory of dense lattice orbits

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Speaker: 
Anish Ghosh
Affiliation: 
Tata Institute of Fundamental Research, Mumbai
Date: 
Fri, 2018-07-06 10:00 - 10:50
Location: 
MPIM Lecture Hall

The classical theory of metric Diophantine approximation is very well developed and has, in recent years, seen significant advances, partly due to connections with homogeneous dynamics. Several problems in this subject can be viewed as particular examples of a very general setup, that of lattice actions on homogeneous varieties of semisimple groups. The latter setup presents significant challenges, including but not limited to, the non-abelian nature of the objects under study. In joint work with Alexander Gorodnik and Amos Nevo, we develop a systematic metric theory for dense lattice orbits, including analogues

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