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TCS
2008
13 years 9 months ago
Constructibility and decidability versus domain independence and absoluteness
We develop a unified framework for dealing with constructibility and absoluteness in set theory, decidability of relations in effective structures (like the natural numbers), and ...
Arnon Avron
TCS
2008
13 years 9 months ago
Directional dynamics for cellular automata: A sensitivity to initial condition approach
A cellular automaton is a continuous function F defined on a full-shift AZ which commutes with the shift . Often, to study the dynamics of F one only considers implicitly . Howeve...
Mathieu Sablik
TCS
2008
13 years 9 months ago
Solving difference equations whose coefficients are not transcendental
We consider a large class of sequences, called admissible sequences, which are defined by systems of (possibly nonlinear) difference equations. A procedure for recursively enumera...
Manuel Kauers
TCS
2008
13 years 9 months ago
Petri nets are less expressive than state-extended PA
We show that the class of Petri nets is less expressive with respect to bisimulation equivalence than the class of PA processes extended with a finite state control unit. Key word...
Mojmír Kretínský, Vojtech Reh...
TCS
2008
13 years 9 months ago
Online unit clustering: Variations on a theme
Online unit clustering is a clustering problem where classification of points is done in an online fashion, but the exact location of clusters can be modified dynamically. We stud...
Leah Epstein, Asaf Levin, Rob van Stee