Abstract
Abstract We show that for two 2 × 2 integral matrices A, B, if the product AB is nil-clean then BA may not be nil-clean. Despite the fact that for many special cases, BA is also nil-clean, we finally found three counterexamples. All the way, the computer aid was decisive.
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Schedule a callMore From: Analele Universitatii "Ovidius" Constanta - Seria Matematica
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