References
- Nambooripad KSS. The natural partial order on a regular semigroup. Proc. Edinburgh Math. Soc. 1980;23:249–260.
- Hartwig RE. How to order regular elements? Math. Japon. 1980;25:1–13.
- Bhaskara Rao KPS. Generalized inverses of matices over integral domain. Linear Algebra Appl. 1983;49:179–189.
- Manjunatha Prasad K. Generalized inverse of matrices over commutative rings. Linear Algebra Appl. 1994;211:35–52.
- Jacobson N. Basic algebra I & II: W.H. New York: Freeman; 1974.
- Mitra SK. The minus partial order and shorted matrix. Linear Algebra Appl. 1986;81:207–236.
- Rao CR, Mitra SK. Generalized inverse of matrices and its applications. New York: Wiley; 1971.
- Mitra SK, Bhimasankarm P, Malik SB. Matrix partial orders, shorted operators and applications. Hackensack, NJ: World Scientific; 2010.