One-directed indecomposable pure injective modules over string algebras
We classify one-directed indecomposable pure injective modules over finite-dimensional string algebras.
One-sided -ideals and -ideals in semirings.
Orbit algebras that are invariant under stable equivalences of Morita type
In this note we show that there are a lot of orbit algebras that are invariant under stable equivalences of Morita type between self-injective algebras. There are also indicated some links between Auslander-Reiten periodicity of bimodules and noetherianity of their orbit algebras.
Ordered ultraconnected rings
Ordering of the Primitive Spectrum of a Semisimple Lie Algebra.
Orders of Global Dimension Two.
Ordinary selfdistributive rings
Left selfdistributive rings (i.e., ) which are semidirect sums of boolean rings and rings nilpotent of index at most 3 are studied.
Ore sets in enveloping algebras
Orthodox bands of modules
Over-rings of an (HNP)-ring