Extensions of $GM$-rings
Czechoslovak Mathematical Journal, Tome 55 (2005) no. 2, pp. 273-281.

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It is shown that a ring $R$ is a $GM$-ring if and only if there exists a complete orthogonal set $\lbrace e_1,\cdots ,e_n\rbrace $ of idempotents such that all $e_iRe_i$ are $GM$-rings. We also investigate $GM$-rings for Morita contexts, module extensions and power series rings.
Classification : 16E50, 16S50, 16U60, 16U99
Keywords: $GM$-ring; module extension; power series ring
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     author = {Chen, Huanyin and Chen, Miaosen},
     title = {Extensions of $GM$-rings},
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Chen, Huanyin; Chen, Miaosen. Extensions of $GM$-rings. Czechoslovak Mathematical Journal, Tome 55 (2005) no. 2, pp. 273-281. http://geodesic.mathdoc.fr/item/CMJ_2005__55_2_a0/