# 타원 모듈라 j-함수의 singular moduli

이동: 둘러보기, 검색

## 예

\begin{array}{c|c|c|c} \tau & j(\tau) & \sqrt[3]{j(\tau )} & \text{factorization} \\ \hline i & 1728 & 12 & 2^6\cdot 3^3 \\ \frac{1}{2} \left(-1+i \sqrt{3}\right) & 0 & 0 & 0 \\ \frac{1}{2} \left(-1+i \sqrt{7}\right) & -3375 & -15 & -3^3 5^3 \\ i \sqrt{2} & 8000 & 20 & 2^6\cdot 5^3 \\ \frac{1}{2} \left(-1+i \sqrt{11}\right) & -32768 & -32 & -2^{15} \\ \frac{1}{2} \left(-1+i \sqrt{19}\right) & -884736 & -96 & -2^{15} 3^3 \\ \frac{1}{2} \left(-1+i \sqrt{43}\right) & -884736000 & -960 & -2^{18} 3^3 5^3 \\ \frac{1}{2} \left(-1+i \sqrt{67}\right) & -147197952000 & -5280 & -2^{15} 3^3 5^3 11^3 \\ \frac{1}{2} \left(-1+i \sqrt{163}\right) & -262537412640768000 & -640320 & -2^{18} 3^3 5^3 23^3 29^3 \\ i \sqrt{3} & 54000 & 30 \sqrt[3]{2} & 2^4\cdot 3^3\cdot 5^3 \\ 2 i & 287496 & 66 & 2^3\cdot 3^3\cdot 11^3 \\ i \sqrt{7} & 16581375 & 255 & 3^3\cdot 5^3\cdot 17^3 \\ \frac{1}{2} \left(-1+3 i \sqrt{3}\right) & -12288000 & 160 \sqrt[3]{-3} & -2^{15} 3^1 5^3 \\ \sqrt{-5} & 632000+282880 \sqrt{5} & 50+26\sqrt{5} & \\ \frac {-1+\sqrt{-5}}{2} & 632000-282880 \sqrt{5} & 50-26\sqrt{5} & \end{array}

## Gross-Zagier 공식

• $$d_1, d_ 2$$가 서로 다른 두 복소이차수체 $$K_1, K_2$$의 판별식이라 하자.
• $$J(d_ 1,d_ 2)$$를 $$\prod_{}\left(j(\alpha_1)-j(\alpha_2)\right)^{\frac{4}{w_1 w_2}}$$ 로 정의하자. 여기서 $$\alpha_1, \alpha_2$$ 는 각각 $K_1$, $K_2$ 의 ideal class의 representatives
정리 [Gross-Zagier]

$J (d_ 1,d_ 2)^2=\prod_{\substack{x,n,n'\in \mathbb{Z}, \\ x^2+4nn'=d_ 1d_ 2, \\ n,n'>0}}n^{\epsilon(n')}$

## 메모

• Morton, Patrick. “Genus Theory and the Factorization of Class Equations over $\mathbb{F}_p$.” arXiv:1409.0691 [math], September 2, 2014. http://arxiv.org/abs/1409.0691.

## 수학용어번역

• singular - 대한수학회 수학용어집
• 특이
• moduli - 대한수학회 수학용어집

## 관련논문

• Ehlen, Stephan. ‘Singular Moduli of Higher Level and Special Cycles’. arXiv:1505.02711 [math], 11 May 2015. http://arxiv.org/abs/1505.02711.
• Bilu, Yuri, Florian Luca, and Amalia Pizarro-Madariaga. “Rational Products of Singular Moduli.” arXiv:1410.1806 [math], October 7, 2014. http://arxiv.org/abs/1410.1806.
• Lauter, Kristin, and Bianca Viray. “On Singular Moduli for Arbitrary Discriminants.” International Mathematics Research Notices, December 1, 2014. doi:10.1093/imrn/rnu223.
• Howard, Benjamin, and Tonghai Yang. 2012. “Singular Moduli Refined.” arXiv:1202.6410 (February 28). http://arxiv.org/abs/1202.6410.
• Dorman, David R. “Special values of the elliptic modular function and factorization formulae.” Journal für die reine und angewandte Mathematik 383 (1988): 207–20.
• On singular moduli. Gross, B.H.; Zagier, Don B, J. Rcinc Angew. Math. 355 (1984), 191-220