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2002/9/18 [Computer/Theory] UID:25923 Activity:moderate |
9/17 I have problems with graph theory & combinatorics cuz I didn't pay attention when I was in school. What's a good book to re-learn these things (and not to get confused when looking at http://mathworld.wolfram.com) ? Mainly I just wanna understand the Ramsey Number (NP problem) -alum \_ Take a look at Modern Graph Theory by Bela Bollobas, and \- hello, there is [was?] a copy of Bela Bollobas: Graph Theory: An Introductory Course [n.b. this "introduction" is a Springer GTM] at the 9th ave Green Apple Book Facility for <$10 ... It's probably worth a trip to save $30 ... I own one but probably should have bought it to "arbitrage"; If the book is not useful to you, you can almost certainly make money on it. Is that the book you mean above? This is a useful reference for some of my work but I dont think it is really a "guide for the perplexed". --psb \_ Modern Graph Theory is a revised version of this, with more than twice as many pages. \_ that's twice as much learnin'!! A Course in Combinatorics by Van Lint and Wilson. (The latter doesn't have much on Ramsey numbers though.) -ok \_ CLR? \_ I've seen some copies of this pretty cheap on http://half.com. |
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mathworld.wolfram.com NKS 2004 Conference to Be Held in Boston NKS 2004, the second conference and minicourse devoted to the concepts in Stephen Wolfram's A New Kind of Science (NKS), will take place this April 22-25 in Boston. Arbitrarily Long Progressions of Primes A new preprint by Green and Tao appears to establish the existence of prime arithmetic progressions of any length k, a result that has been conjectured for three quarters of a century but until now has defied proof. New NKS|Online, Functions, and MathWorld Websites Unveiled 2004 brings the rollout of NKS|Online, a major upgrade to The Wolfram Functions Site, and a new look for MathWorld to the internet. RSA-576 Factored A 174-digit number proposed as a challenge for current factorization algorithms has been factored into two 87-digit primes. References Visible links 1. Hidden links: 39. |
half.com -> half.ebay.com/index.jsp An enduring masterpiece written by Carson McCullers at age 23, The Heart is a Lonely Hunter explores isolation, compassion, and racism. Four outcasts struggling with loneliness in a Georgia mill town during the 1930's turn to John Singer, a mute, for solace and guidance. D12 World is a playground on which Detroit's Dirty Dozen performs lyrical gymnastics to the backdrop of fresh infectious beats. Their sophomore release features the breakout single "My Band". Gamers play as one of eight survivors of a deadly biological weapon attack. The split-second decisions gamers make influence the scenarios faced later in the game. This hard-core gaming experience can be shared either cooperatively or competitively online. |