L q -spectra of self-affine measures: closed forms, counterexamples, and split binomial sums
L q -spectra of self-affine measures: closed forms, counterexamples, and split binomial sums
复制标题
自仿射测度的 L q 谱:封闭形式、反例和分裂二项式和
DOI:
10.1088/1361-6544/ac14a2
复制
发表时间:
2021
期刊:
影响因子:
1.7
通讯作者:
Han Yu
中科院分区:
文献类型:
--
作者:
J. Fraser;Lawrence D. Lee;I. Morris;Han Yu
We study L q -spectra of planar self-affine measures generated by diagonal matrices. We introduce a new technique for constructing and understanding examples based on combinatorial estimates for the exponential growth of certain split binomial sums. Using this approach we disprove a theorem of Falconer and Miao from 2007 and a conjecture of Miao from 2008 concerning a closed form expression for the generalised dimensions of generic self-affine measures. We also answer a question of Fraser from 2016 in the negative by proving that a certain natural closed form expression does not generally give the L q -spectrum. As a further application we provide examples of self-affine measures whose L q -spectra exhibit new types of phase transitions. Finally, we provide new non-trivial closed form bounds for the L q -spectra, which in certain cases yield sharp results.
DOI:
10.2307/2532125
发表时间:
1990-03
期刊:
--
影响因子:
--
作者:
K. Falconer
通讯作者:
K. Falconer