arXivDaily arXiv每日学术速递 周一至周五更新
北美退伍军人节(Veterans Day),12 日无更新
arXiv 1605.04480math.NT
收藏

最优模拟Jacobi θ函数

Optimal Mock Jacobi Theta Functions

Miranda C. N. Cheng, John F. R. Duncan

摘要:

我们对权为1的有理系数的最优拟Jacobi形式进行了分类。它们所跨越的空间是34维的,并且允许一个由双曲平面的等距亏格零群参数化的特殊基。我们表明,他们的傅里叶系数可以明确地表示在奇异模量,并获得积极的条件,区分最佳的模拟雅可比形式出现在阴影月光。我们发现所有的Ramanujan模拟θ函数都可以简单地表示为有理系数的最优模拟Jacobi形式。

英文摘要:

We classify the optimal mock Jacobi forms of weight one with rational coefficients. The space they span is thirty-four-dimensional, and admits a distinguished basis parameterized by genus zero groups of isometries of the hyperbolic plane. We show that their Fourier coefficients can be expressed explicitly in terms of singular moduli, and obtain positivity conditions which distinguish the optimal mock Jacobi forms that appear in umbral moonshine. We find that all of Ramanujan's mock theta functions can be expressed simply in terms of the optimal mock Jacobi forms with rational coefficients.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑