Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4631675 | Applied Mathematics and Computation | 2010 | 5 Pages |
Abstract
We characterize the existence of the group inverse of a two by two matrix with zero (2, 2) entry, over a ring by means of the existence of the inverse of a suitable function of the other three entries. Some special cases are derived.
Keywords
Related Topics
Physical Sciences and Engineering
Mathematics
Applied Mathematics
Authors
P. Patrício, R.E. Hartwig,