COMMUNICATIONS IN ALGEBRA, cilt.29, sa.6, ss.2389-2405, 2001 (SCI-Expanded)
A ring R is semiperfect if and only if, for every (cyclic) R-module Al, every maximal submodule has (ample) supplements in M. A non-local commutative domain R is h-local if and only if, for every (cyclic) torsion R-module Al, every maximal submodule of M has (ample) supplements in M.