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REPORTS > AUTHORS > HARALD HEMPEL:
All reports by Author Harald Hempel:

TR97-025 | 26th May 1997
Harald Hempel, Gerd Wechsung

The Operators min and max on the Polynomial Hierarchy

We define a general maximization operator max and a general minimization
operator min for complexity classes and study the inclusion structure of
the classes max.P, max.NP, max.coNP, min.P, min.NP, and min.coNP.
It turns out that Krentel's class OptP fits naturally into this frame-
work (it can be ... more >>>




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