Alternative formulae for the number of sublattices

被引：16

作者：

Gruber, B

机构：

来源：

ACTA CRYSTALLOGRAPHICA SECTION A | 1997年 / 53卷

关键词：

D O I：

10.1107/S0108767397009781

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Two formulae for the number of sublattices of a given index k of an n-dimensional lattice are presented. They are based on the decomposition of the index k into a product of prime numbers and have the form of a rational function of these primes. Compared with other known methods, they can give the result in a much quicker and more comfortable way.

引用

页码：807 / 808

页数：2