Generalized Core Inverse in a proper $\ast$-ring

Abstract

In this paper, we introduce the notion of weak core and central weak core inverse in a {\it proper $\ast$-ring}. We further elaborate on these two classes by producing a few representations and characterizations of the weak core and central weak core invertible elements. We investigated additive properties and a few explicit expressions for these two classes of inverses through other generalized inverses. In addition, numerical examples are provided to validate claims on weak core inverses. Following {\it proper $\ast$-ring} and their interconnections with Clifford algebra, we also present examples of the group inverse and the weak core inverse of a non-zero non-invertible quaternion ${\mathbb{H}}_s$.

22 pages, 1 figure