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arXiv math/0612721math.DSmath.NT
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不变测度与Littlewood猜想的例外集

Invariant measures and the set of exceptions to Littlewood's conjecture

Manfred Einsiedler, Anatole Katok, Elon Lindenstrauss

摘要:

对SL(k,R)/SL(k,Z)上在正对角矩阵群A作用下不变遍历的测度进行了分类.我们应用这一点来证明,一组例外的Littlewood猜想有豪斯多夫维数为零。

英文摘要:

We classify the measures on SL (k,R)/SL (k,Z) which are invariant and ergodic under the action of the group A of positive diagonal matrices with positive entropy. We apply this to prove that the set of exceptions to Littlewood's conjecture has Hausdorff dimension zero.

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