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- Xref: sparky sci.math:14906 comp.theory:2402
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- From: pef@dcs.qmw.ac.uk (Panayotis Fouliras; TA PhD)
- Newsgroups: sci.math,comp.theory
- Subject: Re: NP Completeness Question
- Message-ID: <1992Nov13.114038.16511@dcs.qmw.ac.uk>
- Date: 13 Nov 92 11:40:38 GMT
- References: <1dpkkeINNad2@mizar.usc.edu> <BxMu2J.2JD@watserv1.uwaterloo.ca>
- Sender: usenet@dcs.qmw.ac.uk (Usenet News System)
- Organization: Computer Science Dept, QMW, University of London
- Lines: 42
- Nntp-Posting-Host: sequent.dcs.qmw.ac.uk
-
- In <BxMu2J.2JD@watserv1.uwaterloo.ca> nrswart@phonon.uwaterloo.ca (Nicholas R. Swart) writes:
-
- >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
-
- If this is so, could you please provide with a
- pointer/reference to a publication, where the above is
- described (preferably not Technical Reports, which are more
- diffcult to access)?
-
- Thank you in advance
-
- Panayotis
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