@inproceedings{5fe98ca0a2a54180a254f9535fff3dca,

title = "On closure properties of #P in the context of PF ○ #P",

abstract = "For any operator τ, we say that #P is closed under τ in context PF ○ #P, if for every f member of #P, and for every h member of PF. h ○ τ[f] also belongs to PF ○ #P. For several operators τ on #P functions, it is shown that the closure property of #P w.r.l. τ in context PF ○ #P is closely related to the relation between P#P[1] and higher classes such as PHPP and PPPP.",

author = "Mitsunori Ogiwara and Thomas Thierauf and Seinosuke Toda and Osamu Watanabe",

year = "1993",

month = jan,

day = "1",

language = "English (US)",

isbn = "0818640715",

series = "Proceedings of the Eighth Annual Structure in Complexity Theory Conference",

publisher = "Publ by IEEE",

pages = "139--146",

editor = "Anon",

booktitle = "Proceedings of the Eighth Annual Structure in Complexity Theory Conference",

note = "Proceedings of the Eighth Annual Structure in Complexity Theory Conference ; Conference date: 18-05-1993 Through 21-05-1993",

}