Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4599693 | Linear Algebra and its Applications | 2014 | 10 Pages |
Abstract
We first characterize idempotent zero patterns. Then we determine the possible numbers of nonzero entries in an idempotent zero pattern with a given minimum rank and characterize those patterns that attain the extremal numbers. The results can be stated in terms of 0–1 matrices.
Keywords
Related Topics
Physical Sciences and Engineering
Mathematics
Algebra and Number Theory
Authors
Chao Ma,