Counting subgroups of Z_n x Z_n
from 11:15 to 12:45
|Where||Alserbachstrasse 23,1090 Wien|
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Abstract. In the talk I will discuss formulae for the number of cyclic subgroups and the number of all subgroups (of a given order) of the group G:=Z_n x Z_n. Also, I will give a simple representation of the subgroups of G. More generally, formulae for the number of subgroups of arbitrary finite abelian groups will be considered.