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On sparse sets in NP-P. (English) Zbl 0501.68014


MSC:

68Q25 Analysis of algorithms and problem complexity
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References:

[1] Berman, L.; Hartmanis, J., On isomorphisms and density of NP and other complete sets, SIAM J. comput., 6, 2, 305-322, (1977) · Zbl 0356.68059
[2] Book, R.V., Tally languages and complexity classes, Inform. control, 186-193, (1974) · Zbl 0287.68029
[3] Book, R.V.; Wrathall, C.; Selman, A.L.; Dobkin, D., Inclusion-complete tally languages and the hartmanis-berman conjecture, Math. systems theory, 1-8, (1977) · Zbl 0365.68044
[4] Book, R.V.; Wilson, C.B.; Xu, M., Relativizing time and space, Proc. 22nd IEEE foundations of computer science symp., 254-259, (1981)
[5] Garey, M.R.; Johnson, D.S., Computers and intractability, A guide to the theory of NP-completeness, (1979), Freeman San Francisco, CA · Zbl 0411.68039
[6] Karp, R.M.; Lipton, R.J., Some connections between nonuniform and uniform complexity classes, Proc. 12th ann. ACM symp. on theory of computation, 302-309, (1980)
[7] S. Kurtz, Private communication.
[8] Ladner, R.E., On the structure of polynomial time reducibility, J. ACM, 155-171, (1975) · Zbl 0322.68028
[9] Mahaney, S., Sparse complete sets for NP: solution of a conjecture of berman and hartmanis, Proc. 21st IEEE foundations of computer science symp., 42-49, (1980)
[10] Wilson, C.B., Relativization, reducibilities and the exponential hierarchy, Tech. rept. no. 140/80, (1980), Department of Computer Science, University of Toronto Toronto, Ontario
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