Linear and Negative Resolution are Weaker than Resolution

نویسندگان

  • Joshua Buresh-Oppenheim
  • David G. Mitchell
  • Toniann Pitassi
چکیده

We prove exponential separations between the sizes of particular refutations in negative, respectively linear, resolution and general resolution. Only a superpolynomial separation between negative and general resolution was previously known. Our examples show that there is no strong relationship between the size and width of refutations in negative and linear resolution. Research partially supported by NSF grant CCR-9457782, US-Israel BSF Grant 95-00238, and an NSERC University Faculty Award. 1 Electronic Colloquium on Computational Complexity, Report No. 74 (2001)

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عنوان ژورنال:
  • Electronic Colloquium on Computational Complexity (ECCC)

دوره 8  شماره 

صفحات  -

تاریخ انتشار 2001