- journal article metadata
European Mathematical Society Publishing House
2016-09-19 17:04:58
Groups, Geometry, and Dynamics
Groups Geom. Dyn.
GGD
1661-7207
1661-7215
Group theory and generalizations
10.4171/GGD
http://www.ems-ph.org/doi/10.4171/GGD
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European Mathematical Society Publishing House
Zuerich, Switzerland
© European Mathematical Society
4
2010
1
On semisimple representations of universal lattices
Daniel
Shenfeld
Princeton University, PRINCETON, UNITED STATES
Universal lattices, superrigidity, arithmetic groups, arithmetic lattices
We study finite-dimensional semisimple complex representations of the universal lattices Γn,k = SLn(ℤ[x1, …, xk]) (n ≥ 3). One may obtain such a representation by specializing x1, …, xk to some complex values and composing the induced homomorphism Γn,k → SLn(ℂ) with a rational representation of SLn(ℂ). We show that any semisimple representation coincides, on a subgroup of finite index, with a direct sum of tensor products of representations obtained in this way.
Group theory and generalizations
Commutative rings and algebras
Differential geometry
General
179
193
10.4171/GGD/79
http://www.ems-ph.org/doi/10.4171/GGD/79