DIMENSION OF INVARIANT MEASURES FOR AFFINE ITERATED FUNCTION SYSTEMS

被引:10
|
作者
Feng, De-Jun [1 ]
机构
[1] Chinese Univ Hong Kong, Dept Math, Shatin, Hong Kong, Peoples R China
关键词
LEDRAPPIER-YOUNG FORMULA; HAUSDORFF DIMENSION; EQUILIBRIUM STATES; EQUAL HAUSDORFF; ERGODIC-THEORY; SELF; ENTROPY; SETS; PROJECTIONS; CONTINUITY;
D O I
10.1215/00127094-2022-0014
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
Let {SiIi2 integral be a finite contracting affine iterated function system (IFS) on Rd. Let (E, a) denote the two-sided full shift over the alphabet A, and let n : E ! Rd be the coding map associated with the IFS. We prove that the projection of an ergodic a-invariant measure on E under n is always exact dimensional, and its Haus-dorff dimension satisfies a Ledrappier-Young-type formula. Furthermore, the result extends to average contracting affine IFSs. This completes several previous results and answers a folklore open question in the community of fractals. Some applications are given to the dimension of self-affine sets and measures.
引用
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页码:701 / 774
页数:74
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