Schnorr randomness for noncomputable measures

Autor: Jason Rute
Rok vydání: 2018
Předmět:
Zdroj: Information and Computation. 258:50-78
ISSN: 0890-5401
Popis: This paper explores a novel definition of Schnorr randomness for noncomputable measures. We say x is uniformly Schnorr μ-random if t ( μ , x ) ∞ for all lower semicomputable functions t ( μ , x ) such that μ ↦ ∫ t ( μ , x ) d μ ( x ) is computable. We prove a number of theorems demonstrating that this is the correct definition which enjoys many of the same properties as Martin-Lof randomness for noncomputable measures. Nonetheless, a number of our proofs significantly differ from the Martin-Lof case, requiring new ideas from computable analysis.
Databáze: OpenAIRE