We consider the Hausdorff dimension of planar Besicovitch sets for rectifiable sets Gamma, that is, sets that contain a rotated copy of Gamma in each direction. We show that for a large class of Cantor sets C and Cantor-graphs Gamma built on C, the Hausdorff dimension of any Gamma-Besicovitch set must be at least min(2-s2,1s)$\min (2-s<^>2,\frac{1}{s})$, where s=dimC$s={\rm dim}\, C$.
机构:
Chinese Univ Hong Kong, Dept Math, Shatin, Hong Kong, Peoples R ChinaChinese Univ Hong Kong, Dept Math, Shatin, Hong Kong, Peoples R China
Feng, De-Jun
Xiong, Ying
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South China Univ Technol, Dept Math, Guangzhou 510641, Guangdong, Peoples R ChinaChinese Univ Hong Kong, Dept Math, Shatin, Hong Kong, Peoples R China