A terminological proposal
@article{Knuth1974ATP,
title={A terminological proposal},
author={Donald Ervin Knuth},
journal={SIGACT News},
year={1974},
volume={6},
pages={12-18}
}While preparing a book on combinatorial algorithms, I felt a strong need for a new technical term, a word which is essentially a one-sided version of polynomial complete. A great many problems of practical interest have the property that they are at least as difficult to solve in polynomial time as those of the Cook-Karp class KP. I needed an adjective to convey such a degree of difficulty, both formally and informally; and since the range of practical applications is so broad, I felt it would…
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