On Closure Properties of #P in the Context of PF°#P
نویسندگان
چکیده
For any operator on integer-valued functions, we say that #P is closed under in context PF#P if, for every f 2 #P, f] belongs to PF #P. For several operators , it is shown that the closure properties of #P under in the above sense is closely related to the relationships between P #PP1] and higher classes such as PH PP and PP PP .
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ورودعنوان ژورنال:
- J. Comput. Syst. Sci.
دوره 53 شماره
صفحات -
تاریخ انتشار 1993