Upper Semilattice of Binary Strings with the Relation "x is Simple Conditional to y"

نویسندگان

  • Andrej Muchnik
  • Andrei E. Romashchenko
  • Alexander Shen
  • Nikolai K. Vereshchagin
چکیده

We study the properties of the set of binary strings with the relation \the Kolmogorov complexity of x conditional to y is small". We prove that there are pairs of strings which have no greatest common lower bound with respect to this pre-order. We present several examples when the greatest common lower bound exists but its complexity is much less than mutual information (extending G acs and K orner result [2]).

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عنوان ژورنال:
  • Theor. Comput. Sci.

دوره 271  شماره 

صفحات  -

تاریخ انتشار 1999