Singular matrices that are products of two idempotents or products of two nilpotents
Călugăreanu Grigore
Special Matrices · 2021
doi:10.1515/spma-2021-0146 (opens in a new tab)
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Abstract
Over commutative domains we characterize the singular 2 × 2 matrices which are products of two idempotents or products of two nilpotents. The relevant casees are the matrices with zero second row and the singular matrices with only nonzero entries.
Abstract licence: CC BY
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