Local rigidity for certain groups of toral automorphisms
Local rigidity for certain groups of toral automorphisms
复制标题
某些托环自同构组的局部刚性
DOI:
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发表时间:
1991
期刊:
影响因子:
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通讯作者:
J. Lewis
中科院分区:
文献类型:
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作者:
A. Katok;J. Lewis
AbstractLet Γ = SL(n, ℤ) or any subgroup of finite index, n ≥ 4. We show that the standard action of Γ on
$$mathbb{T}$$
n is locally rigid, i.e., every action of Γ on
$$mathbb{T}$$
n by C∞ diffeomorphisms which is sufficiently close to the standard action is conjugate to the standard action by a C∞ diffeomorphism. In the course of the proof, we obtain a global rigidity result (Theorem 4.12) for actions of free abelian subgroups of maximal rank in SL(n, ℤ).