Workshop on

COMPUTABILITY AND RANDOMNESS


Heidelberg, Germany, April 25 and 26, 2003


PROGRAM

The lectures will be held at the Lecture Hall 1 (HS 1) of the Mathematisches Institut INF 288, Heidelberg.


Friday
April 25
 
9:00 Coffee and Registration

09:30 Rod Downey (University of Wellington, NZ):
Recent work on computability and calibrating randomness

10:30 Coffee

11:00 Semen Possitselsky (Moscow, RUS):
Kolmogorov complexity, m-degrees, and bT-degrees
11:30 Jürgen Schmidhuber (IDSIA, Lugano, CH):
Generalized algorithmic information, generalized algorithmic probability, and super omegas
12:00 Marcus Hutter (IDSIA, Lugano, CH):
On the Existence and Convergence of Computable Universal Priors

12:30 Lunch

14:00 Andrej Muchnik and Alexei Semenov (Institute of New Technologies, Moscow, RUS):
A comparison of growths of simple and prefix entropies
15:00 Alexey Chernov (Moscow State University, RUS):
Kolmogorov complexity, Kleene realizability and the weak law of excluded middle

15:30 Coffee

16:00 Jack Lutz (Iowa State University, Ames, USA):
Randomness and dimension
16:30 Elvira Mayordomo (Universidad de Zaragoza, E):
Dimensions and information measures
17:00 John Hitchcock (Iowa State University, Ames, USA):
Small spans in scaled dimension
17:30 Jan Reimann (Universität Heidelberg, D):
Dimension, capacity and perfect subsets

Saturday
April 26
 
09:00 Eric Allender (Rutgers University, USA):
What can be efficiently reduced to the set of K-random strings?
10:00 Rüdiger Reischuck (Universität Lübeck, D):
The complexity of computing the Hamming distance

10:30 Coffee

11:00 Cristian S. Calude (University of Auckland, NZ) and Ludwig Staiger (Universität Halle, D):
Generalisations of disjunctive sequences
11:30 Veronica Becher and Santiago Figueira (Universidad de Buenos Aires, ARG):
Program size complexity in infinite computations
12:00 Andrei Romashchenko (Institute of Problems of Information Transmission, Moscow, RUS):
Non-Shannon type information inequalities and their applications

12:30 Snacks

13:00 Philippe Moser (Université de Genève, CH):
A zero-one measure law for RP and derandomization of AM if NP is not small
13:30 Boris Ryabko (Siberian State University, Novosibirsk, RUS):
Two-faced processes and new tests for randomness
14:00 Andre Nies (University of Auckland, NZ):
Each low for computably random set is computable
14:30 Wolfgang Merkle (Universität Heidelberg, D):
Kolmogorov-Loveland stochastic sequences

16:30 Guided Tour through Heidelberg

18:30 Reception, Haus Buhl
19:30 Conference Banquet, Haus Buhl

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Responsible: Jan Reimann
Last modified: April 3, 2003