… injective modules. We prove the following meaningful conclusions (1) When M is a semiregular
module, … It is also proved that if MR is SP pseudo injective, co-Hopfian, and mR is a small …

… if and only if the left [[ RS ≤ ]]-module [ MS ≤ ] is weakly Co-Hopfian . Key words: weakly
Co-Hopfian module;generalized power series ring;generalized inverse polynomials module …