The Sixth Lecture on Algorithmic Randomness

This paper follows on from the author’s Five Lectures on Algorithmic Randomness. It is concerned with material not found in that long paper, concentrating on Martin-Lof lowness and triviality. We present a hopefully user-friendly account of the decanter method, and discuss recent results of the author with Peter Cholak and Noam Greenberg concerning the class of strongly jump traceable reals introduced by Figueira, Nies and Stephan.

[1]  André Nies,et al.  Calibrating Randomness , 2006, Bull. Symb. Log..

[2]  A. Nies,et al.  Lowness and Π 0 2 Nullsets , 2006 .

[3]  George Barmpalias,et al.  Random non-cupping revisited , 2006, J. Complex..

[4]  Sebastiaan Terwijn,et al.  Computational randomness and lowness* , 2001, Journal of Symbolic Logic.

[5]  Dana,et al.  JSL volume 88 issue 4 Cover and Front matter , 1983, The Journal of Symbolic Logic.

[6]  André Nies,et al.  Reals which Compute Little , 2002 .

[7]  Frank Stephan,et al.  Lowness for Weakly 1-generic and Kurtz-Random , 2006, TAMC.

[8]  Rebecca Weber,et al.  Lowness and nullsets , 2006, Journal of Symbolic Logic.

[9]  Rodney G. Downey Some Computability-Theoretical Aspects of Reals and Randomness , 2002 .

[10]  Bjørn Kjos-Hanssen,et al.  Lowness for the Class of Schnorr Random Reals , 2005, SIAM J. Comput..

[11]  André Nies,et al.  Lowness properties and approximations of the jump , 2008, Ann. Pure Appl. Log..

[12]  Sebastiaan Terwijn,et al.  Lowness for The Class of Random Sets , 1999, J. Symb. Log..

[13]  Gregory J. Chaitin,et al.  A recent technical report , 1974, SIGA.

[14]  Donald W. Loveland,et al.  A Variant of the Kolmogorov Concept of Complexity , 1969, Information and Control.

[15]  J ChaitinGregory A Theory of Program Size Formally Identical to Information Theory , 1975 .

[16]  Gregory J. Chaitin Information-Theoretic Characterizations of Recursive Infinite Strings , 1976, Theor. Comput. Sci..

[17]  Theodore A. Slaman,et al.  Turing incomparability in Scott sets , 2006, math/0602439.

[18]  Marcia J. Groszek,et al.  An almost deep degree , 2001, Journal of Symbolic Logic.

[19]  Rodney G. Downey,et al.  FIVE LECTURES ON ALGORITHMIC RANDOMNESS , 2008 .

[20]  André Nies,et al.  Non-cupping and randomness , 2007 .

[21]  A. Nies Lowness properties and randomness , 2005 .

[22]  R. Soare Recursively enumerable sets and degrees , 1987 .

[23]  Keng Meng Ng On strongly jump traceable reals , 2008, Ann. Pure Appl. Log..