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Rings over Which Matrices Are Sums of Idempotent and $ q $ -Potent Matrices
Siberian Mathematical Journal ( IF 0.7 ) Pub Date : 2021-01-29 , DOI: 10.1134/s0037446621010018
A. N. Abyzov , D. T. Tapkin

We study the rings over which each square matrix is the sum of an idempotent matrix and a \( q \)-potent matrix. We also show that if \( F \) is a finite field not isomorphic to \( 𝔽_{3} \) and \( q>1 \) is odd then each square matrix over \( F \) is the sum of an idempotent matrix and a \( q \)-potent matrix if and only if \( q-1 \) is divisible by \( |F|-1 \).



中文翻译:

哪些矩阵是幂等和$ q $的环-强矩阵

我们研究了每个平方矩阵是幂等矩阵和\(q \)幂矩阵之和的 环。我们还表明,如果 \(F \)是一个与\(𝔽_{3} \)同构的有限域, 并且 \(q> 1 \) 是奇数,则\(F \)上的每个方阵 都是当且仅当\(q-1 \)可被\(| F | -1 \)整除时, 幂等矩阵和 \(q \)势矩阵 。

更新日期:2021-02-02
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