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arXiv math/9805132math.AGmath.NT
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一个12次12权的Siegel尖点形式

A Siegel cusp form of degree 12 and weight 12

Richard E. Borcherds, E. Freitag, R. Weissauer

摘要:

已知两个秩为16的幺模偶正定格的θ级数在次数上至多为3,而在次数上线性无关。在本文中,我们考虑下一个情况下的24个尼迈耶格秩24。相关的θ级数在次数上最多为11,在次数上是线性相关的,在次数上是线性无关的。由此产生的Siegel尖点形式的程度12和重量12是一个Hecke本征形,似乎有有趣的性质。

英文摘要:

The theta series of the two unimodular even positive definite lattices of rank 16 are known to be linearly dependent in degree at most 3 and linearly independent in degree 4. In this paper we consider the next case of the 24 Niemeier lattices of rank 24. The associated theta series are linearly dependent in degree at most 11 and linearly independent in degree 12. The resulting Siegel cusp form of degree 12 and weight 12 is a Hecke eigenform which seems to have interesting properties.

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