Abstract
We prove that three preorders on the finite k-labeled forests are polynomial time computable. Together with an earlier result of the first author, this implies polynomial-time computability for an important initial segment of the corresponding degrees of discontinuity of k-partitions on the Baire space. Furthermore, we show that on ω-labeled forests the first of these three preorders is polynomial time computable as well while the other two preorders are NP-complete.
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References
Balcázar, J.L., Díaz, J., Gabarró, J.: Structural complexity. I. In: EATCS Monographs on Theoretical Computer Science, vol. 11, Springer, Berlin (1988)
Balcázar, J.L., Díaz, J., Gabarró, J.: Structural complexity II. In: EATCS Monographs on Theoretical Computer Science, vol. 22, Springer, Berlin (1990)
Brattka, V., Gherardi, G.: Effective choice and boundedness principles in computable analysis. Bulletin of Symbolic Logic 17(1), 73–117 (2011)
Brattka, V., Gherardi, G.: Weihrauch degrees, omniscience principles and weak computability. J. Symb. Log. 76(1), 143–176 (2011)
Davey, B., Priestley, H.: Introduction to Lattices and Order, 2nd edn. Cambridge University Press, Cambridge (2002)
Downey, R.G., Fellows, M.R.: Parameterized Complexity Theory. Monographs in Computer Science. Springer, New York (1999)
Hertling, P.: A topological complexity hierarchy of functions with finite range. Technical Report 223, Centre de recerca matematica, Institut d’estudis catalans, Barcelona, Workshop on Continuous Algorithms and Complexity (October 1993)
Hertling, P.: Topologische Komplexitätsgrade von Funktionen mit endlichem Bild. Informatik Berichte 152, FernUniversität Hagen, Hagen (December 1993)
Hertling, P.: Unstetigkeitsgrade von Funktionen in der effektiven Analysis. PhD thesis, Fachbereich Informatik, FernUniversität Hagen (1996)
Hirsch, M.D.: Applications of topology to lower bound estimates in computer science. In: Hirsch, M.W., et al. (eds.) From topology to computation: Proceedings of the Smalefest, pp. 395–418. Springer, New York (1993)
Kechris, A.S.: Classical descriptive set theory.. Graduate Texts in Mathematics, vol. 156. Springer, Berlin (1995)
Kosub, S.: NP-partitions over posets with an application to reducing the set of solutions of NP problems. Theory Comput. Syst. 38(1), 83–113 (2005)
Kosub, S., Wagner, K.W.: The Boolean Hierarchy of NP-Partitions. In: Reichel, H., Tison, S. (eds.) STACS 2000. LNCS, vol. 1770, pp. 157–168. Springer, Heidelberg (2000)
Kudinov, O.V., Selivanov, V.L.: Undecidability in the Homomorphic Quasiorder of Finite Labeled Forests. In: Beckmann, A., Berger, U., Löwe, B., Tucker, J.V. (eds.) CiE 2006. LNCS, vol. 3988, pp. 289–296. Springer, Heidelberg (2006)
Kudinov, O.V., Selivanov, V.L.: Undecidability in the homomorphic quasiorder of finite labelled forests. J. Log. Comput. 17(6), 1135–1151 (2007)
Kudinov, O.V., Selivanov, V.L.: A Gandy Theorem for Abstract Structures and Applications to First-Order Definability. In: Ambos-Spies, K., Löwe, B., Merkle, W. (eds.) CiE 2009. LNCS, vol. 5635, pp. 290–299. Springer, Heidelberg (2009)
Kudinov, O.V., Selivanov, V.L., Zhukov, A.V.: Undecidability in Weihrauch Degrees. In: Ferreira, F., Löwe, B., Mayordomo, E., Mendes Gomes, L. (eds.) CiE 2010. LNCS, vol. 6158, pp. 256–265. Springer, Heidelberg (2010)
Kwuida, L., Lehtonen, E.: On the homomorphism order of labeled posets. Order (2010)
Lehtonen, E.: Labeled posets are universal. Eur. J. Comb. 29(2), 493–506 (2008)
Selivanov, V.: Boolean hierarchies of partitions over a reducible base. Algebra Logika 43(1), 77–109 (2004); Translation in Algebra and Logic 43(1), 44-61
Selivanov, V.L.: Hierarchies of \(\Delta^0_2\)–measurable k–partitions. Mathematical Logic Quarterly 53(4–5), 446–461 (2007)
von Stein, T.: Vergleich nicht konstruktiv lösbarer Probleme in der Analysis. Diplomarbeit, Fakultät für Informatik, FernUniversität Hagen (March 1989)
Weihrauch, K.: The degrees of discontinuity of some translators between representations of the real numbers. Informatik Berichte 129, FernUniversität Hagen, Hagen (July 1992)
Weihrauch, K.: The TTE-interpretation of three hierarchies of omniscience principles. Informatik Berichte 130, FernUniversität Hagen, Hagen (September 1992)
Weihrauch, K.: Computable Analysis. Springer, Berlin (2000)
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Hertling, P., Selivanov, V. (2011). Complexity Issues for Preorders on Finite Labeled Forests. In: Löwe, B., Normann, D., Soskov, I., Soskova, A. (eds) Models of Computation in Context. CiE 2011. Lecture Notes in Computer Science, vol 6735. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-21875-0_12
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