摘要
We get criteria of strong cleanness for several classes of 2 × 2 matrices over integers. For commutative local domains, we establish ones in terms of solvability of quadratic equations. Strongly clean matrices over power series are also studied.
We get criteria of strong cleanness for several classes of 2 × 2 matrices over integers. For commutative local domains, we establish ones in terms of solvability of quadratic equations. Strongly clean matrices over power series are also studied.
基金
The research of the author was supported by the Natural Science Foundation of Zhejiang Province （LY13A010019） and the Fund of Hangzhou Normal University, China.
