Intersection of modular polynomials
Intersection of modular polynomials
复制标题
模多项式的交集
DOI:
10.1090/s0002-9939-08-09750-5
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发表时间:
2008
期刊:
影响因子:
--
通讯作者:
Jie Ling
中科院分区:
文献类型:
--
作者:
Jie Ling
In this paper, we consider the intersection of classic modular polynomials. The intersection number on affine space is given by the well-known Hurwitz class numbers. We give two different ways to compute the intersection number by two different compactifications of A 2 . This yields a new and more elementary formula for the intersection number. Consequently we get a class number relation. We also give a pure combinatorial proof of this class number relation.