On the Number of Subgroups of Index Two—An Application of Goursat's Theorem for Groups
作者:
CrawfordR. R.,
WallaceK. D.,
期刊:
Mathematics Magazine
(Taylor Available online 1975)
卷期:
Volume 48,
issue 3
页码: 172-174
ISSN:0025-570X
年代: 1975
DOI:10.1080/0025570X.1975.11976474
出版商: Taylor&Francis
数据来源: Taylor
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