2006
DOI: 10.1016/j.jalgebra.2006.06.032
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Continuous modules are clean

Abstract: A ring R is said to be clean if every element of R is a sum of an idempotent and a unit. The class of clean rings is quite large and includes, for instance, semiperfect rings (and thus finite rings), and rings of linear transformations of vector spaces. We prove that the endomorphism ring of every continuous (or discrete) module is clean.

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Cited by 76 publications
(54 citation statements)
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“…4.2). On the other hand, going back to the idempotent f , we have A = ker (f ) and B = im (f ), so the equation M = A ⊕ B is precisely the "ABAB-decomposition" of a with respect to the strongly clean representation a = f + u, in the sense of [3] (after [15]). The inclusion relations K ⊆ A ⊆ I and K ⊆ B ⊆ I could have been checked directly without invoking Theorem 3.6(1) or Theorem 4.5.…”
Section: Theorem 45 For Any Modulementioning
confidence: 99%
“…4.2). On the other hand, going back to the idempotent f , we have A = ker (f ) and B = im (f ), so the equation M = A ⊕ B is precisely the "ABAB-decomposition" of a with respect to the strongly clean representation a = f + u, in the sense of [3] (after [15]). The inclusion relations K ⊆ A ⊆ I and K ⊆ B ⊆ I could have been checked directly without invoking Theorem 3.6(1) or Theorem 4.5.…”
Section: Theorem 45 For Any Modulementioning
confidence: 99%
“…Nicholson (1977) dalam Nicholson dan Zhou [6] memberikan definisi bahwa suatu ring R dikatakan ring bersih apabila setiap elemen dari ring R merupakan elemen bersih, sedangkan suatu elemen dalam suatu ring R dikatakan bersih apabila dapat dinyatakan sebagai hasil penjumlahan suatu elemen idempoten dan suatu elemen unit dari ring R. Camillo et.al. [1] memberikan definisi bahwa suatu modul atas ring R dikatakan bersih apabila ring endomorfisma dari modul tersebut merupakan ring bersih. …”
Section: Pendahuluanunclassified
“…Selain itu, Lam [4] juga memberikan sifat elemen idempoten dalam ring endomorfisma dari suatu modul quasi-kontinu, sedangkan beberapa sifat ring endomorfisma dari modul kontinu dan quasi-kontinu lainnya diberikan oleh Camillo et.al. [1] …”
Section: Metode Penelitianunclassified
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