Hyperbolic reflection groups associated to the quadratic forms $-3x_0^2 + x_1^2 + ... + x_n^2$

Hyperbolic reflection groups associated to the quadratic forms $-3x_0^2 + x_1^2 + ... + x_n^2$
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与二次形式 $-3x_0^2 x_1^2 ... x_n^2$ 关联的双曲反射群

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发表时间:
2010
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通讯作者:
John Mcleod
John Mcleod
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作者:
John Mcleod

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我们确定与二次型$-3x_0^2 + x_1^2 + \cdots + x_n^2$($n\geq2$)相关的极大双曲反射群,并给出其基本多面体的考克斯特图式。这些群存在于至多13维的空间中,并且给出了一个证明,即在更高维度这些二次型不是反射型的。
We determine the maximal hyperbolic reflection groups associated to the quadratic forms $-3x_0^2 + x_1^2 + ... + x_n^2$, $n ge 2$, and present the Coxeter schemes of their fundamental polyhedra. These groups exist in dimensions up to 13, and a proof is given that in higher dimensions these quadratic forms are not reflective.