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From: Amy on 2 Oct 2009 12:11 "enry" <invalid(a)invalid.com> wrote in message news:ha3br7$a4b$1(a)news.albasani.net... > There is a 3-page postscript document on EMIS. > > Here is the PDF version. > > http://dl.free.fr/gMojEGqSw/jsh.pdf > > (note: this "paper" was never printed in paper, and was "withdrawn") > > ........................................................................ > Electronic Journal: Southwest Journal of Pure and Applied Mathematics > Internet: http://rattler.cameron.edu/swjpam.html > ISSN 1083-0464 > > Issue 2, December 2003, pp. 6-8. > Submitted: July 25, 2003. Published: December 31 2003. > ADVANCED POLYNOMIAL FACTORIZATION > James Harris > > Abstract. Algebraic method for determining distribution of factors within > a polynomial > factorization, which breaks through what was seen as a barrier from > overinterpretations > of Galois Theory. > > A.M.S. (MOS) Subject Classification Codes. 11R04,11R09 > > KeyWords and Phrases. Polynomial factorization, Galois theory, > Factorization > lemma, Ring of algebraic integers > > Advanced Polynomial Factorization Approached. > > Determining the distribution of factors within irrational algebraic > integers has > long been considered impossible as it is not possible to do using Galois > Theory. > However a simple technique through the introduction of more variables > makes it > possible. To highlight the standard belief consider the algebraic integer > roots of > x2 + x ? 5. > > While you know that the algebraic integer factors are themselves factors > of 5, > can either not have non unit factors of 5? How do you know? > > In looking to consider distribution of algebraic integer factors within a > factorization > I'll be using a more complicated example than x2 + x ? 5. > > This paper will show, using basic algebraic methods, that given the > factorization, > in the ring of algebraic integers, > > 65x3 ? 12x + 1 = (a1x + 1)(a2x + 1)(a3x + 1) > > one of the a's is coprime to 5. > > First I'll need a simple lemma to generalize beyond factors of a > polynomial that > are themselves polynomials. > > E-mail Address: jstevh(a)msn.com > c 2003 Cameron University > > Typeset by AMS-TEX > > 6 > ADVANCED POLYNOMIAL FACTORIZATION 7 > Factorization Lemma:. > > Given a factor g of a polynomial P(x), further defined as a factor for all > x, which > means that the value of g for a value 'a' of x is a factor of P(a), within > the ring of > algebraic integers, there exists r and c such that > > g = r + c > > where r=0, or varies as x varies, and c is a factor of the constant term > P(0) and > is itself constant. > > Let x=0, then g must be a factor of P(0), so at that point c = g. > > If when x does not equal 0, g=c, r=0. If when x does not equal 0, g 6=c > there > must exist r which varies with x. That is, r=g-c. > > As an example consider ?x + 1 which is a non polynomial factor of x+1, and > while there are an infinity of irrational solutions consider the rational > solution at > x=35. > > Then I have ?35 + 1 = 6 = 5 + 1; therefore when x=35, g=6, r=5, and c=1. > But for different values of x, g and r will vary, while c will not. > > Primary Argument. > > Given > > 65x3 ? 12x + 1 = (a1x + 1)(a2x + 1)(a3x + 1) > > in the ring of algebraic integers. Let > > P(m) = f2((m3f4 ? 3m2f2 + 3m)x3 ? 3(?1 + mf2)xu2 + u3f) > > Here f is a non unit, non zero algebraic integer coprime to 3 and x, and u > a non > unit, non zero algebraic integer coprime to f. Note P(m) has a factor that > is f2. > > That expression comes from expanding (v3+1)x3?3vxy2+y3, using the > substitutions > v = ?1+mf2, and y = uf, where additional variables provide an additional > degree of freedom. > > Now consider the factorization > > P(m) = (a1x + uf)(a2x + uf)(a3x + uf) > > where multiplying out shows that > > a1a2a3 = m3f6 ? 3m2f4 + 3mf2 = f2(m3f4 ? 3m2f2 + 3m) > so > > a1a2a3 = mf2(m2f4 ? 3mf2 + 3). > > Therefore, at least one of the a's cannot be coprime to m, and at least > one of > the a's must equal 0 when m=0. > > (Note: The a's are roots of a monic polynomial with algebraic integer > coefficients > so they are algebraic integers.) > > Notice that the constant term P(0) is given by P(0) = f2(3xu2 + u3f) and > also > that P(0)/f2 = 3xu2 + u3f, which is coprime to f. > > 8 SOUTHWEST JOURNAL OF PURE AND APPLIED MATHEMATICS > Then I have the factor of P(m), g1, where g1 = a1x+uf, where here I also > have > that a1 is not coprime to m. > > �From my factorization lemma, I have that, when m=0 > g1 = c = uf > > meaning f is a factor of the constant term. > > Therefore, exactly two of the a's equal 0, when m=0, to get the factor f2 > in the > constant term P(0), while one must not equal 0, or f3 would be the factor. > > Now as noted before in general P(m) has a factor that is f2, and > separating that > factor off, gives a constant term coprime to f; therefore, given > > g1 = a1x + uf where with m = 0, g1 gives a factor of f it must have that > same > factor in general, proving that two of the a's have a factor that is f. > Therefore, one factor is coprime to f. > > Now letting m=1, f=?5, where I can let u=1 as its value doesn't change the > a's, > I have > > (m3f6 ? 3m2f4 + 3m)x3 ? 3(?1 + mf2)xu2 + u3 = 65x3 ? 12x + 1 > which may be more easily seen from using v = ?1 + mf2 = 4, y=1 with (v3 + > 1)x3 ? 3vxy2 + y3. > > Therefore, with the factorization > > 65x3 ? 12x + 1 = (a1x + 1)(a2x + 1)(a3x + 1) > > one of the a's is coprime to 5, which shows where some of the algebraic > integer > factors distribute despite the factors being irrational. > >>>>>>>>>>>>>>>>>>>>>>>>>>> > > and that is it folks! Finally, there it is. > Even JSH his own self would not reveal the contents > It will cause world economy to collapse, > Iran attacked > Ants to jump! > > Seems JSH's main point is; Factorization Lemma:. Given a factor g of a polynomial P(x), further defined as a factor for all x, which means that the value of g for a value 'a' of x is a factor of P(a), within the ring of algebraic integers, there exists r and c such that g = r + c where r = 0, or varies as x varies, and c is a factor of the constant term P(0) and is itself constant. |