Randomness on Computable Probability Spaces—A Dynamical Point of View
Randomness on Computable Probability Spaces—A Dynamical Point of View
复制标题
可计算概率空间上的随机性——动态观点
DOI:
10.1007/s00224-010-9263-x
复制
发表时间:
2009
影响因子:
0.5
通讯作者:
Cristobal Rojas
中科院分区:
文献类型:
--
作者:
P. Gács;M. Hoyrup;Cristobal Rojas
We extend the notion of randomness (in the version introduced by Schnorr) to computable probability spaces and compare it to adynamicalnotion of randomness: typicality. Roughly, a point istypicalfor some dynamic, if it follows the statistical behavior of the system (Birkhoff’s pointwise ergodic theorem). We prove that a point is Schnorr random if and only if it is typical for everymixingcomputable dynamics. To prove the result we develop some tools for the theory of computable probability spaces (for example, morphisms) that are expected to have other applications.