The Lattice of Fully Invariant Subgroups of a Cotorsion Hull
Abstract The paper considers the lattice of fully invariant subgroups of the cotorsion hull of a countable direct sum of torsion-complete p-groups. It is shown that this lattice is isomorphic to the lattice of dual ideals of a semilattice made up of infinite matrices.
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2019 ◽
Vol 31
(08)
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pp. 1950026
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2013 ◽
Vol 89
(2)
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pp. 234-242
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2002 ◽
Vol 31
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pp. 97-101
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2019 ◽
Vol 18
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pp. 1950035
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