TY - JOUR T1 - Some Results on the Upper Convex Densities of the Self-Similar Sets at the Contracting-Similarity Fixed Points AU - Shaoyuan Xu , AU - Wangbin Xu , AU - Zuoling Zhou , JO - Analysis in Theory and Applications VL - 1 SP - 92 EP - 100 PY - 2017 DA - 2017/01 SN - 31 DO - http://doi.org/10.4208/ata.2015.v31.n1.8 UR - https://global-sci.org/intro/article_detail/ata/4625.html KW - Self-similar set, upper convex density, Hausdorff measure and Hausdorff dimension, contracting-similarity fixed point. AB -

In this paper, some results on the upper convex densities of self-similar sets at the contracting-similarity fixed points are discussed. Firstly, a characterization of the upper convex densities of self-similar sets at the contracting-similarity fixed points is given. Next, under the strong separation open set condition, the existence of the best shape for the upper convex densities of self-similar sets at the contracting-similarity fixed points is proven. As consequences, an open problem and a conjecture, which were posed by Zhou and Xu, are answered.