Math
in [Science]
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Maximal Ideals The expression maximal ideal is ambiguous. Here are two differing notions of maximal ideal. By Zorn's lemma, if x /= 0, there's a maximal ideal I with x not in I. Is I a maximal ideal? Are the two notions the same for rings? If different, how are they distinguished? Are there cases when they are the same? ... 4 Aug 2010 11:25
"What Galileo Avoided [corresp. w. Kepler]" I know; cracking the books & the lab-door are quite a bit more of interest than the self-imposed ghettos of Usenet. enough of idiocy thus: I just found abok that addresses many of the concerns -- from a brief perusal of about three "random" openings, and of the index -- of the Truthers; it's from 2005, by... 1 Aug 2010 00:52
'Relativistic' "Doppler" shift I'll huff and I'll puff. have you ever proven a theorem in (say) constructive geometry, KW?... iff you haven't, can I call you, Kobblee Yooblee? Ahahahaha... thus: there are two 3d versions of the pythag.thm., each with different dimensional attributes.... iff you don't study Fermat's numbertheorie, you... 1 Aug 2010 00:52
---- ---- ----- validity of an equation On Aug 1, 9:38 am, david <dlee...(a)yahoo.com> wrote: Consider the following equation for the given condition. 2^[(k-1)(k-2)] = 1 mod k^2 (1) Condition: prime k > 3. Question: For what value of k (1) is valid? A helpful reply will be appreciated. David (1) is true if... 2 Aug 2010 11:27
Contradictions in games? Hi Assuming mathematics is just some kind of game, I was wondering, what would be a contradiction in chess? What does it mean to say that chess is complete? Respectfully, Robert Kaufman ... 3 Aug 2010 21:20
36 people, meeting in groups of 6. Is it possible to meet each person exactly once in a round of 7 meetings? An interesting question was posted on Metafilter here: http://ask.metafilter.com/161031/Dont-meet-the-same-person-twice-involves-math-somehow#2311544 I'm wondering if anyone knows the answer or a good approach. Slightly re-stated from that forum, here is the problem: 36 people total, meeting in groups of ... 31 Jul 2010 22:43
---- ---- ----- validity of an equation Consider the following equation for the given condition. 2^[(k-1)(k-2)] = 1 mod k^2 (1) Condition: prime k > 3. Question: For what value of k (1) is valid? A helpful reply will be appreciated. David ... 1 Aug 2010 00:52
Matrix with unit modulus roots - a sequel to "Name for matrix"- carlos(a)colorado.edu wrote: On Jul 29, 5:40 am, JEMebius <jemeb...(a)xs4all.nl> wrote: car...(a)colorado.edu wrote: This hopefully makes my previous post more explicit. Consider the 4 x 4 matrix written in Mathematica notation, T= {{1+c2,s2,s2,1-c2}, {-s2,1+c2,-1+c2,s2}, {-... 31 Jul 2010 18:22
well defining concept of "infinity" Re: Exoplanets in Tight 2:1 Resonance #250 & 4.34 Atom Totality & Correcting Math Robert L. Oldershaw wrote: On Jul 31, 12:30 am, Archimedes Plutonium <plutonium.archime...(a)gmail.com> wrote: When Democritus in ancient Greek times said " the only things existing, are atoms", he really meant it. If you believe it, then logic says the totality is one big atom. So if ... 1 Aug 2010 00:52
Intersection of Complex Submanifolds (Incl. Self-Int.) ispositive Thanks a Lot, Mr. Hall, very clear. ... 31 Jul 2010 16:10 |