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Article #1899

Re: P=NP; the proof

#1899
From: Mike Robson
Date: Wed, 06 Jan 1993 22:14
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jmr@cs.anu.edu.au (Mike Robson) writes:

>jmr@cs.anu.edu.au (Mike Robson) writes:


>>Who can shoot down this alleged proof that P=NP?
>>The ideas are taken from the Gismondi and Swart papers but the
>>algorithms are simplified and the proofs are completely new.
>>If you haven't read their papers, you will probably not follow this.
>>I'll post a more detailed version soon unless anyone has convinced
>>me I'm wrong (in which case I will post a retraction).

>I was wrong about the dimensions of the matrix M since it has more
>rows than the number of nonzero sab. I can't see any way to fix this
>(though I am working on it). I've had mail from Peter Breuer of
>Cambridge who says he has found a fix. I am looking forward to hearing
>from him what it is.

>So currently my proof is dead but if you believe in resurrection
>watch this space.

>Mike Robson.

AARRGGHH!!

Jim Reeds has proved that this problem cannot be fixed.
I'll go back to trying to decide if the current Gismondi and Swart
linear programming formulation has the required property (that every
solution covers a permutation). If that claim is true, then I think
my approach is a good way to try and prove it.
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Path: arc1-ca.pugleaf.net!sparky!uunet!munnari.oz.au!manuel.anu.edu.au!dubhe.anu.edu.au!nunki.anu.edu.au!not-for-mail
From: jmr@cs.anu.edu.au (Mike Robson)
Newsgroups: comp.theory
Subject: Re: P=NP; the proof
Date: 7 Jan 1993 09:14:17 +1100
Organization: Computer Science Department, ANU, Australia
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