Supported by the National Natural Science Foundation of China(11271148)
It is well known that for almost all real number x, the geometric mean of the first n digits di(x) in the Lüroth expansion of x converges to a number K0 as n→∞. On the other hand, for almost all x, the arithmetri...
This paper is concerned with the Diophantine properties of the sequence {ξθn}, where 1 ≤ξ 〈 θ and θ is a rational or an algebraic integer. We establish a combinatorial proposition which can be used to study suc...
supported by the Fundamental Research Funds for the Central Universities(2012201020204);the second author is supported by NSFC(11171128,11271148)
We investigate topological entropy of periodic Coven cellular automatas; that is, the maps Fs: (0, 1)^z → {0, 1)^z defined by FB(x)i=xi+^rПj=1(xi+j+bj)(mod 2), where B = b1b2…br ∈ {0, 1}^r(r≥2), is...