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found 178 articles for 1.796 sec
From Osher Doctorow The Jacobson Radical of Nathan Jacobson is a key concept in (noncommutative) ring and module theory, although it is also found in commutative ring theory and topology. Its circle or star product is defined by: 1) yox = y + x - xy We'll consider addition and multiplication commutative here. I usually use the notation P(A-->B) for set/events A, B and P(X-->Y) for     

Group: sci.physics · Group Profile · Search for Commutative Ring X X X in sci.physics
Author: OsherD
Date: Jun 25, 2008 19:14

Hi, I am looking for a means (?package) to compute in an abstract ring or field. (In my case these are matrices of an unspecified dimension) E.g. I want to expand pe(x/2*A) * pe(x*B) * pe(x/2*A) where A and B are some quadratic matrices of compatible size. pe is a polynomial (an approximation of the exponential function in my case). For other problems I even need Maple's knowledge
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In article <4725706A.9090403@hotmail.com> Archimedes Plutonium <a_plutonium@hotmail.com> writes: > Dik T. Winter wrote: ... > > You may state where they lie. This is irrelevant. I ask about arithmetic, > > especially myltiplication. What is (pi) * (pi)? > > (pi) x (pi) = 180 x 180 = 32,400 degrees = 90 (2pi) = 2pi since they are > all modulo. How do you get 180 * 180 = 32,400 degrees     

Group: comp.softsys.math.maple · Group Profile · Search for Commutative Ring X X X in comp.softsys.math.maple
Author: Helmut Jarausch
Date: Jun 13, 2008 03:54

Dik T. Winter wrote: In article <1193337300.498727.302030@d55g2000hsg.googlegroups.com> a_plutonium <a_plutonium@hotmail.com> writes: (snipped) You may state where they lie. This is irrelevant. I ask about arithmetic, especially myltiplication. What is (pi) * (pi)? (pi) x (pi) = 180 x 180 = 32,400 degrees = 90 (2pi) = 2pi since they are all modulo. Dik, the nice thing
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I have a set of nearly new Stronglight time trial chainrings, 55 x 42 teeth. They came with a set of cranks I bought on here and I don't need them. They seem to be modern era since the 55 has six of those pins on it for smoother shifting. $25. Email me for pics. I also have which I'll basically give away if you buy other items (see my other ads): * Shimano 52 130mm (4 out of 10 condition     

Group: sci.physics · Group Profile · Search for Commutative Ring X X X in sci.physics
Author: Dik T. Winter
Date: Oct 29, 2007 06:12

On Mar 13, 2007 9:46 PM CT, David.Faling@gmail.com wrote: On Mar 13, 9:10 pm, Narcoleptic Insomniac <i_have_narcoleptic_insom...@yahoo.com> wrote: On Mar 13, 2007 5:48 PM CT, David.Fail...@gmail.com wrote: I've already shown that, since x^3+x+1 is irreducible in Z_2, <x^3+x+1> is a maximal Ideal of Z_2[x], thus making Z_2[x]/<x^3+x+1> a field. But
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On 13 Mar 2007 19:46:06 -0700, "David.Failing@gmail.com" <David.Failing@gmail.com> wrote in <news:1173840366.351566.65740@y80g2000hsf.googlegroups.com> in alt.math.undergrad: > On Mar 13, 9:10 pm, Narcoleptic Insomniac > <i_have_narcoleptic_insom...@yahoo.com> wrote: >> On Mar 13, 2007 5:48 PM CT, David.Fail...@gmail.com wrote: >>> I've already shown that, since x^3+x+1 is irreducible     

Group: sci.physics · Group Profile · Search for Commutative Ring X X X in sci.physics
Author: Archimedes Plutonium
Date: Oct 28, 2007 22:32

On Mar 13, 9:10 pm, Narcoleptic Insomniac <i_have_narcoleptic_insom...@yahoo.com> wrote: On Mar 13, 2007 5:48 PM CT, David.Fail...@gmail.com wrote: I've already shown that, since x^3+x+1 is irreducible in Z_2, <x^3+x+1> is a maximal Ideal of Z_2[x], thus making Z_2[x]/<x^3+x+1> a field. But now i need to show that the set of coset representatives may be reduced to {0
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From Osher Doctorow Felix M. Lev, formerly of Laboratory of Nuclear Problems Joint Institute for Nuclear Research (JINR) Dubna Russia (where he published 20 of his 32 papers on arXiv) between 1992 and 2000, and then with Artwork Conversion Software Inc Manhattan Beach California USA since 2001, has just come out with "De Sitter invariance and a possible mechanism of gravity," 113 pages, arXiv     

Group: rec.bicycles.marketplace · Group Profile · Search for Commutative Ring X X X in rec.bicycles.marketplace
Author: MrAnchorMan
Date: Apr 29, 2007 06:59

Hey pulp-girl! (Got it right this time? ;-) Have to focus on earning my living this week, but thanks for the reply and I will be back to you with a few more questions. Jay. <neuropulp@yahoo.com.au> wrote in message news:76e6f596-31a2-40b4-b9a7-84d81f8e05ea@s50g2000hsb.googlegroups.com... Jay Yablon wrote: I have a few questions with reference to a thread that from some time
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Group: alt.math.undergrad · Group Profile · Search for Commutative Ring X X X in alt.math.undergrad
Author: Narcoleptic Insomniac
Date: Mar 13, 2007 20:15

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Group: alt.math.undergrad · Group Profile · Search for Commutative Ring X X X in alt.math.undergrad
Author: Brian M. Scott
Date: Mar 13, 2007 20:05

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Group: alt.math.undergrad · Group Profile · Search for Commutative Ring X X X in alt.math.undergrad
Author: David.Failing
Date: Mar 13, 2007 19:46

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Group: sci.physics · Group Profile · Search for Commutative Ring X X X in sci.physics
Author: OsherD
Date: Jul 21, 2008 23:07

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Group: sci.physics.foundations · Group Profile · Search for Commutative Ring X X X in sci.physics.foundations
Author: Jay R. Yablon
Date: Jun 18, 2008 22:52

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