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Lander Ramos

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1

STOC Conference 2010 Conference Paper

The HOM problem is decidable

  • Guillem Godoy
  • Omer Giménez
  • Lander Ramos
  • Carme Àlvarez

We provide an algorithm that, given a tree homomorphism H and a regular tree language L represented by a tree automaton, determines whether H(L) is regular. This settles a question that has been open for a long time.

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