Theoretical Computer Science, Volume 225

Volume 225, Numbers 1-2, August 1999

• Maryse Pelletier, Jacques Sakarovitch:
  On the Representation of Finite Deterministic 2-Tape Automata. 1-63
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• Pierluigi Crescenzi, Luca Trevisan:
  Max NP-completeness Made Easy. 65-79
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• Zsuzsanna Róka:
  Simulations between Cellular Automata on Cayley Graphs. 81-111
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• Andrea E. F. Clementi, Luca Trevisan:
  Improved Non-Approximability Results for Minimum Vertex Cover with Density Constraints. 113-128
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• Wai-fong Chuan:
  Sturmian Morphisms and alpha-Words. 129-148
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• Ismo Hakala, Juha Kortelainen:
  On the System of Word Equations x₀uⁱ₁x₁uⁱ₂x₂uⁱ₃x₃=y₀vⁱ₁y₁vⁱ₂y₂vⁱ₃y₃(i=0, 1, 2, ...) in a Free Monoid. 149-161
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• Pak-Ken Wong:
  Optimal Path Cover Problem on Block Graphs. 163-169
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• Josep M. Basart, Pere Guitart:
  A Solution for the Coloured Cubes Problem. 171-176
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• Manfred Göbel:
  The "Smallest" Ring of Polynomial Invariants of a Permutation Group which has No Finite SAGBI Bases w.r.t. Any Admissible Order. 177-184
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• Jack H. Lutz, David L. Schweizer:
  Feasible Reductions to Kolmogorov-Loveland Stochastic Sequences. 185-194
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