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Deformation rigidity for subgroups of SL(n,$${\mathbb{Z}})$$ acting on the n- torus. (English) Zbl 0713.57022
The smooth and analytic rigidity of the standard action of a subgroup of SL(n,$${\mathbb{Z}})$$ on the n-dimensional torus is announced provided that $$n>2$$ and the subgroup has finite index. The sketch of the proof is included. The details will appear elsewhere. Some related results are discussed.
Reviewer: P.Walczak

##### MSC:
 57S25 Groups acting on specific manifolds 58H15 Deformations of general structures on manifolds 22E40 Discrete subgroups of Lie groups 57S20 Noncompact Lie groups of transformations
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##### References:
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