On semiabelian -regular rings.
Chen, Weixing (2007)
International Journal of Mathematics and Mathematical Sciences
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Chen, Weixing (2007)
International Journal of Mathematics and Mathematical Sciences
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L. Fuchs, I. Halperin (1964)
Fundamenta Mathematicae
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Ehrlich, Gertrude (1968)
Portugaliae mathematica
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Р. Гончигдорж (1987)
Algebra i Logika
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Norman Lang (1972)
Annali della Scuola Normale Superiore di Pisa - Classe di Scienze
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M. Ghadermazi, O. A. S. Karamzadeh, M. Namdari (2013)
Rendiconti del Seminario Matematico della Università di Padova
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Al-Ezeh, H. (1988)
International Journal of Mathematics and Mathematical Sciences
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Pere Ara, Kenneth R. Goodearl (1992)
Publicacions Matemàtiques
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A longstanding open problem in the theory of von Neumann regular rings is the question of whether every directly finite simple regular ring must be unit-regular. Recent work on this problem has been done by P. Menal, K. C. O'Meara, and the authors. To clarify some aspects of these new developments, we introduce and study the notion of almost isomorphism between finitely generated projective modules over a simple regular ring.
Noboru Endou, Kazuhisa Nakasho, Yasunari Shidama (2015)
Formalized Mathematics
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In this article, semiring and semialgebra of sets are formalized so as to construct a measure of a given set in the next step. Although a semiring of sets has already been formalized in [13], that is, strictly speaking, a definition of a quasi semiring of sets suggested in the last few decades [15]. We adopt a classical definition of a semiring of sets here to avoid such a confusion. Ring of sets and algebra of sets have been formalized as non empty preboolean set [23] and field of subsets...
E. Steiner (1967)
Fundamenta Mathematicae
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O. Marrero (1979)
Revista Matemática Hispanoamericana
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Putcha, Mohan.S., Yaqub, Adil (1979)
International Journal of Mathematics and Mathematical Sciences
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