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Recursive coalgebras of finitary functors

Published online by Cambridge University Press:  17 August 2007

Jiří Adámek
Affiliation:
Technical University of Braunschweig, Institute of Theoretical Computer Science, Braunschweig, Germany; adamek@iti.cs.tu-bs.de; milius@iti.cs.tu-bs.de
Dominik Lücke
Affiliation:
Department of Computer Science, University of Bremen, PO Box 330440, 28334 Bremen, Germany; luecke@tzi.de
Stefan Milius
Affiliation:
Technical University of Braunschweig, Institute of Theoretical Computer Science, Braunschweig, Germany; adamek@iti.cs.tu-bs.de; milius@iti.cs.tu-bs.de
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Abstract

For finitary set functors preserving inverse images, recursive coalgebras A of Paul Taylor are proved to be precisely those for which the system described by A always halts in finitely many steps.

Type
Research Article
Copyright
© EDP Sciences, 2007

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References

P. Aczel and N. Mendler, A Final Coalgebra Theorem, Proceedings Category Theory and Computer Science, edited by D.H. Pitt et al. Lect. Notes Comput. Sci. (1989) 357–365.
Adámek, J. and Milius, S., Terminal coalgebras and free iterative theories. Inform. Comput. 204 (2006) 11391172. CrossRef
J. Adámek and V. Trnková, Automata and Algebras in Categories. Kluwer Academic Publishers (1990).
J. Adámek, D. Lücke and S. Milius, Recursive coalgebras of finitary functors, in CALCO-jnr 2005 CALCO Young Researchers Workshop Selected Papers, edited by P. Mosses, J. Power and M. Seisenberger, Report Series, University of Swansea, 1–14.
Barr, M., Terminal coalgebras in well-founded set theory. Theoret. Comput. Sci. 114 (1993) 299315. CrossRef
Capretta, V., Uustalu, T. and Vene, V., Recursive coalgebras from comonads. Inform. Comput. 204 (2006) 437468. CrossRef
Koubek, V., Set functors. Comment. Math. Univ. Carolin. 12 (1971) 175195.
Lambek, J., A fixpoint theorem for complete categories. Math. Z. 103 (1968) 151161. CrossRef
Milius, S., Completely iterative algebras and completely iterative monads. Inform. Comput. 196 (2005) 141. CrossRef
R. Montague, Well-founded relations; generalizations of principles of induction and recursion (abstract). Bull. Amer. Math. Soc. 61 (1955) 442.
G. Osius, Categorical set theory: a characterization of the category of sets. J. Pure Appl. Algebra  4 (1974) 79–119. CrossRef
Rutten, J., Universal coalgebra, a theory of systems. Theoret. Comput. Sci. 249 (2000) 380.
P. Taylor, Practical Foundations of Mathematics. Cambridge University Press (1999).
V. Trnková, On a descriptive classification of set-functors I. Comment. Math. Univ. Carolin. 12 (1971) 143–174.