Coherence of Reducibilities with Randomness Notions
Coherence of Reducibilities with Randomness Notions
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DOI:
10.1007/s00224-017-9752-2
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发表时间:
2018-10
影响因子:
0.5
通讯作者:
Kenshi Miyabe
中科院分区:
文献类型:
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作者:
Kenshi Miyabe
Loosely speaking, whenAis “more random” thanBandBis “random”, thenAshould be random. The theory of algorithmic randomness has some formulations of “random” sets and “more random” sets. In this paper, we study which pairs (R,r) of randomness notionsRand reducibilitiesrhave the follwing property: ifAisr-reducible toBandAisR-random, thenBshould beR-random. The answer depends on the notionsRandr. The implications hold for most pairs, but not for some. We also give characterizations ofn-randomness via complexity.