Math
in [Science]
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algebraic group? According to the wikipedia, orthogonal group over any field is an algebraic group, because the condition that a matrix be orthogonal, i.e. have its own transpose as inverse, can be expressed as a set of polynomial equations in the entries of the matrix. Algebraic group is defined to be a group which is an algebra... 14 Jul 2010 04:26
easy proof of No Odd Perfect number from simply 1/3 + 1/3 combo + 1/3 combo #671 Correcting Math Archimedes Plutonium wrote: Archimedes Plutonium wrote: While I am at it, may as well jogg the memory of how sqrt2 is proven irrational as a tug of war between being even and odd: --- quoting from Wikipedia --- Assume that â2 is a rational number, meaning that there exists an inte... 14 Jul 2010 02:17
Math-induction to get 2^p -1 Re: Proof of the Infinitude of Perfect Numbers and infinitude of Mersenne primes #668 Correcting Math Archimedes Plutonium wrote: Archimedes Plutonium wrote: Archimedes Plutonium wrote: (snipping) Infinitude of Twin Primes proof: (1) definition of prime (2) hypothetical assumption: suppose set of all primes is finite and 2,3,5, 7, 11, . ., p_n, p_n+2 is the ... 14 Jul 2010 01:12
JSH: There can be only one On Jul 12, 8:49 pm, Aatu Koskensilta <aatu.koskensi...(a)uta.fi> wrote: JSH <jst...(a)gmail.com> writes: Ask him, is there a prime gap equation? I'll ask Christopher Lambert. For a fraction of a second I just figured that must be some mathematician I hadn't heard of. Then I rofled. Marshall ... 13 Jul 2010 21:56
Really Poor Wiki Article On Hard & Soft Science Has anyone even bothered to precisely define or list the differences between "hard" and "soft" sciences? Its one of those distinctions so common and old that we forget that new people have to learn it also. Hard science and soft science are colloquial terms often used when comparing fields of... 20 Jul 2010 12:28
JSH: Maybe they're fakes? I've wondered for years if maybe there are people who've been hired to argue with me, who are trained in psychological operations and not mathematics. My latest trick with prime gaps snared them nicely, if so, and now I'm curious what techniques they will use. I STUDY those techniques. ___JSH ... 18 Jul 2010 11:36
JSH: Poll: Collected responses to JSH work in one place? To all on sci.math who respond to JSH threads... Recent threads launched by JSH are re-hashes of ideas long discounted or shown to be already discovered. It is therefore proposed that a centralised moderated collection of articles be put together that can be referred to so that newcomers don't have to re-invent t... 14 Jul 2010 08:46
FOM Help Can anyone tell me how to reply to a FOM post? I am a subscriber but haven't replied to a post in years. I know this is pitiful. Don't tell anybody I had to ask. Anon. ... 13 Jul 2010 18:38
improvement in Re: Proof of the Infinitude of Perfect Numbers and infinitude of Mersenne primes #667 Correcting Math Archimedes Plutonium wrote: Archimedes Plutonium wrote: (snipping) Infinitude of Twin Primes proof: (1) definition of prime (2) hypothetical assumption: suppose set of all primes is finite and 2,3,5, 7, 11, . ., p_n, p_n+2 is the complete list of all the primes with ... 13 Jul 2010 17:32
related to sqrt2 irrational proof Re: Proof that 1 is the only Odd Perfect Number #666 Correcting Math While I am at it, may as well jogg the memory of how sqrt2 is proven irrational as a tug of war between being even and odd: --- quoting from Wikipedia --- Assume that â2 is a rational number, meaning that there exists an integer a and an integer b in general such that a / b = â2. Then â2 can be writte... 13 Jul 2010 17:32 |