Very cleanness of generalized matrices

نویسنده

  • Y. Kurtulmaz Department of Mathematics‎, ‎Bilkent University, Ankara‎, ‎Turkey.
چکیده مقاله:

An element $a$ in a ring $R$ is very clean in case there exists‎ ‎an idempotent $ein R$ such that $ae = ea$ and either $a‎- ‎e$ or $a‎ + ‎e$ is invertible‎. ‎An element $a$ in a ring $R$ is very $J$-clean‎ ‎provided that there exists an idempotent $ein R$ such that $ae =‎ ‎ea$ and either $a-ein J(R)$ or $a‎ + ‎ein J(R)$‎. ‎Let $R$ be a‎ ‎local ring‎, ‎and let $sin C(R)$‎. ‎We prove that $Ain K_s(R)$ is‎ ‎very clean if and only if $Ain U(K_s(R))$‎, ‎$Ipm Ain U(K_s(R))$‎ ‎or $Ain K_s(R)$ is very J-clean‎.

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عنوان ژورنال

دوره 43  شماره 5

صفحات  1457- 1465

تاریخ انتشار 2017-10-31

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