"J-불변량과 모듈라 다항식"의 두 판 사이의 차이
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Pythagoras0 (토론 | 기여) |
Pythagoras0 (토론 | 기여) (→예) |
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6번째 줄: | 6번째 줄: | ||
==예== | ==예== | ||
− | * $n=2$ | + | * $n=2$ |
$$ | $$ | ||
\Phi_2(x,y)=x^3+y^3-x^2 y^2+1488 (x^2 y + x y^2)-162000 (x^2+y^2) +40773375 x y+8748000000 (x + y)-157464000000000 | \Phi_2(x,y)=x^3+y^3-x^2 y^2+1488 (x^2 y + x y^2)-162000 (x^2+y^2) +40773375 x y+8748000000 (x + y)-157464000000000 | ||
$$ | $$ | ||
− | * $n=3$ | + | * $n=3$ |
$$ | $$ | ||
\begin{aligned} | \begin{aligned} |
2018년 5월 19일 (토) 14:46 판
개요
- 타원 모듈라 j-함수 (elliptic modular function, j-invariant)
- $\Phi_n\bigl(j(n\tau),j(\tau)\bigr)=0$를 만족하는 기약다항식 $\Phi_n(x,y)\in{\mathbb{
Z}}[x,y]$이 존재하며, 이 때 차수는 $x,y$ 각각에 대하여 $\psi(n)=n\prod_{p|n}(1+1/p)$로 주어진다
예
- $n=2$
$$ \Phi_2(x,y)=x^3+y^3-x^2 y^2+1488 (x^2 y + x y^2)-162000 (x^2+y^2) +40773375 x y+8748000000 (x + y)-157464000000000 $$
- $n=3$
$$ \begin{aligned} \Phi_3(x,y) &=x^4+y^4-x^3 y^3+36864000 \left(x^3+y^3\right)-1069956 \left(x^3 y+x y^3\right)+2587918086 x^2 y^2 \\ &+452984832000000 \left(x^2+y^2\right)+8900222976000 \left(x^2 y+x y^2\right)+2232 \left(x^3 y^2+x^2 y^3\right) \\ &-770845966336000000 x y+1855425871872000000000 (x+y) \end{aligned} $$
매스매티카 파일 및 계산 리소스
- https://docs.google.com/file/d/0B8XXo8Tve1cxdlhoeW5aTWZqRFk/edit
- http://www.math.uwaterloo.ca/~mrubinst/modularpolynomials/phi_l.html
- https://math.mit.edu/~drew/ClassicalModPolys.html
관련도서
- http://books.google.de/books?id=tsTfnHLmgmQC&pg=PA70&dq=157464000000000&hl=de&sa=X&ei=wk0NUvHKO6eK4ATh4oH4BQ&ved=0CDsQ6AEwAQ#v=onepage&q=157464000000000&f=false
- http://books.google.de/books?id=9pUg6nY_-hsC&pg=PA99&dq=157464000000000&hl=de&sa=X&ei=wk0NUvHKO6eK4ATh4oH4BQ&ved=0CDQQ6AEwAA#v=onepage&q=157464000000000&f=false
관련논문
- Sutherland, Andrew V. “On the Evaluation of Modular Polynomials.” arXiv:1202.3985 [cs, Math], February 17, 2012. doi:10.2140/obs.2013.1.531.
- Cohen, Paula. 1984. “On the Coefficients of the Transformation Polynomials for the Elliptic Modular Function.” Mathematical Proceedings of the Cambridge Philosophical Society 95 (3): 389–402. doi:http://dx.doi.org/10.1017/S0305004100061697.
- Yui, Noriko. 1978. “Explicit Form of the Modular Equation.” Journal Für Die Reine Und Angewandte Mathematik 299/300: 185–200. http://dx.doi.org/10.1515/crll.1978.299-300.185
- Herrmann, Oskar. 1975. “Über Die Berechnung Der Fourierkoeffizienten Der Funktion $j(\tau )$.” Journal Für Die Reine Und Angewandte Mathematik 274/275: 187–195. http://gdz.sub.uni-goettingen.de/dms/load/img/?PPN=GDZPPN002190532&IDDOC=253998