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- Xref: sparky sci.math:14895 comp.theory:2401
- Newsgroups: sci.math,comp.theory
- Path: sparky!uunet!utcsri!torn!watserv2.uwaterloo.ca!watserv1!phonon.uwaterloo.ca!nrswart
- From: nrswart@phonon.uwaterloo.ca (Nicholas R. Swart)
- Subject: Re: NP Completeness Question
- Message-ID: <BxMu2J.2JD@watserv1.uwaterloo.ca>
- Sender: news@watserv1.uwaterloo.ca
- Organization: University of Waterloo
- References: <1dpkkeINNad2@mizar.usc.edu>
- Date: Fri, 13 Nov 1992 02:11:06 GMT
- Lines: 29
-
- In article <1dpkkeINNad2@mizar.usc.edu> tunal@mizar.usc.edu (Tamer Unal) writes:
- ...
- >My guess is that 1. is in of polynomial complexity while 2.
- >is NP-complete.
- >
- >Any pointers, references, appreciated.
- >
- Professor E.R. Swart of the Computer Science Department at the University
- of Guelph, has recently developed a polynomial-sized linear programing
- formulation of the graph isomorphism problem and he has been able to show
- that with minor modifications, this same formulation can be used to solve
- the Hamilton tour, clique and other subgraph isomorphism problems.
-
- This proves that P=NP and all NP-complete and all other NP problems thus
- have polynomial time algorithms.
-
- So to answer your question, 1 and 2 are probably both polynomial.
-
- Nicholas
- Dept. of Elec. and Comp. Engineering
- University of Waterloo
- Waterloo, Ontario
- CANADA
- N2L 3G1
-
- >--
- >Serdar Boztas
- >posting from someone else's account with their permission
- >normally at serdar@fawlty8.eng.monash.edu.au
-