Strongly clean matrices over power series
Date
2016
Authors
Chen, H.
Kose, H.
Kurtulmaz, Y.
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Abstract
An n × n matrix A over a commutative ring is strongly clean provided that it can be written as the sum of an idempotent matrix and an invertible matrix that commute. Let R be an arbitrary commutative ring, and let A(x) ∈ Mn ( R[[x]]) . We prove, in this note, that A(x) ∈ Mn ( R[[x]]) is strongly clean if and only if A(0) ∈ Mn(R) is strongly clean. Strongly clean matrices over quotient rings of power series are also determined.
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Kyungpook Mathematical Journal
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Kyungpook National University
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English