Non-differentiability and Hölder properties of self-affine functions

Autor: Serge Dubuc
Rok vydání: 2018
Předmět:
Zdroj: Expositiones Mathematicae. 36:119-142
ISSN: 0723-0869
DOI: 10.1016/j.exmath.2017.10.002
Popis: We consider the class of self-affine functions. Firstly, we characterize all nowhere differentiable self-affine continuous functions. Secondly, given a self-affine continuous function ϕ , we investigate its Holder properties. We find its best uniform Holder exponent and when ϕ is C 1 , we find the best uniform Holder exponent of ϕ ′ . Thirdly, we show that the Holder cut of ϕ takes the same value almost everywhere for the Lebesgue measure. This last result is a consequence of the Borel strong law of large numbers.
Databáze: OpenAIRE