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## Quotient-transitivity and cyclic submodule-transitivity for $p$-adic modules

Colloquium Mathematicum MSC: Primary 13C05; Secondary 20K30, 13C13. DOI: 10.4064/cm8348-1-2021 Opublikowany online: 11 March 2021

#### Streszczenie

Two new notions of transitivity, which we have named quotient-transitivity and transitivity with respect to cyclic submodules for $p$-adic modules, are introduced. Unlike the classical notions that derive from Abelian group theory, this approach is based on isomorphism of quotients and makes no use of height sequences. The two new notions lead to a sufficiently large class of interesting modules. Our principal result is that finitely generated $p$-adic modules are both quotient-transitive and transitive with respect to cyclic submodules.

#### Autorzy

• Brendan GoldsmithSchool of Mathematical Sciences
TU Dublin
City Campus, Lower Grangegorman
Dublin 7, Ireland
e-mail
• Ketao GongSchool of Mathematics and Statistics
Hubei Engineering University