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A lower bound for the Hausdorff dimension of the set of weighted simultaneously approximable points over manifolds
International Journal of Number Theory ( IF 0.5 ) Pub Date : 2021-03-05 , DOI: 10.1142/s1793042121500639 Victor Beresnevich 1 , Jason Levesley 1 , Ben Ward 1
International Journal of Number Theory ( IF 0.5 ) Pub Date : 2021-03-05 , DOI: 10.1142/s1793042121500639 Victor Beresnevich 1 , Jason Levesley 1 , Ben Ward 1
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Given a weight vector τ = ( τ 1 , … , τ n ) ∈ ℝ + n with each τ i bounded by certain constraints, we obtain a lower bound for the Hausdorff dimension of the set 𝒲 n ( τ ) ∩ ℳ , where ℳ is a twice continuously differentiable manifold. From this we produce a lower bound for 𝒲 n ( Ψ ) ∩ ℳ where Ψ is a general approximation function with certain limits. The proof is based on a technique developed by Beresnevich et al. in 2017, but we use an alternative mass transference style theorem proven by Wang, Wu and Xu (2015) to obtain our lower bound.
中文翻译:
流形上加权同时可逼近点集的 Hausdorff 维数的下界
给定一个权重向量τ = ( τ 1 , … , τ n ) ∈ ℝ + n 与每个τ 一世 在一定的约束下,我们得到了集合的 Hausdorff 维数的下界𝒲 n ( τ ) ∩ ℳ , 在哪里ℳ 是一个二次连续可微流形。由此我们产生了一个下限𝒲 n ( Ψ ) ∩ ℳ 在哪里Ψ 是具有一定限制的一般逼近函数。该证明基于 Beresnevich 开发的一种技术等。 在 2017 年,但我们使用由 Wang、Wu 和 Xu(2015)证明的替代传质风格定理来获得我们的下限。
更新日期:2021-03-05
中文翻译:
流形上加权同时可逼近点集的 Hausdorff 维数的下界
给定一个权重向量