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Duality for finite quotient groups of finitely generated free abelian groups

$\newcommand{\Z}{{\Bbb Z}} \newcommand{\Q}{{\Bbb Q}} \newcommand{\Hom}{{\rm Hom}} $ The following lemma is certainly known. Lemma (well-known). Let $B$ be a lattice (that is, a finitely generated ...
Mikhail Borovoi's user avatar
1 vote
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Algebraic structures on graphs

There are many algebraic structures linked to graphs. For example one can find zero divisor graphs $[1]$, $[2]$ and many other graphs. Does there exist any survey paper which characterizes all the ...
Charlotte's user avatar
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