No dimension reduction for doubling subsets of ℓ when q > 2 revisited
No dimension reduction for doubling subsets of ℓ when q > 2 revisited
复制标题
当重新访问 q->-2 时,不会对 α 的子集加倍进行降维
DOI:
10.1016/j.jmaa.2021.125407
复制
发表时间:
2021
影响因子:
1.3
通讯作者:
Swift, A.
中科院分区:
文献类型:
--
作者:
Baudier, F.;Swieçicki, K.;Swift, A.
We revisit the main results from [6],[7] and [23] about the impossibility of dimension reduction for doubling subsets of ℓ q for q> 2. We provide an alternative elementary proof of this impossibility result that combines the simplicity of the construction in [6],[7] with the generality of the approach in [23](except for L 1 targets). One advantage of this different approach is that it can be naturally generalized to obtain embeddability obstructions into non-positively curved spaces or asymptotically uniformly convex Banach spaces.