We use cookies to distinguish you from other users and to provide you with a better experience on our websites. Close this message to accept cookies or find out how to manage your cookie settings.
Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.
Suppose that a ring is a sum of its nilpotent subrings. We use directed graphs to give new conditions sufficient for the whole ring to be nilpotent.
[1]Bahturin, Yu. A. and Giambruno, A., ‘Identities of sums of commutative subalgebras’ Rend. Circ. Mat. Palermo (2) 43 (1994)(2), 250–258.CrossRefGoogle Scholar
[2]
[2]Bahturin, Yu. A. and Kegel, O. H., ‘Lie algebras which are universal sums of abelian subalgebras’, Comm. Algebra23 (1995), 2975–2990.CrossRefGoogle Scholar
[3]
[3]Beidar, K. I. and Mikhalev, A. V., ‘Generalized polynomial identities and rings which are sums of two subrings’, Algebra i Logika34 (1995)(1), 3–11.Google Scholar
[4]
[4]Bokut', L. A., ‘Embeddings in simple associative algebras’, Algebra i Logika15 (1976) (2), 117–142.Google Scholar
[5]
[5]Ferrero, M. and Puczyłowski, E. R., ‘On rings which are sums of two subrings’, Arch. Math. (Basel)53 (1989), 4–10.CrossRefGoogle Scholar
[6]
[6]Fukshansky, A., ‘The sum of two locally nilpotent rings may contain a non-commutative free subring’, Proc. Amer. Math. Soc., to appear.Google Scholar
[7]
[7]Herstein, I. N. and Small, L. W., ‘Nil rings satisfying certain chain conditions’, Canad. J. Math.16 (1964), 771–776.CrossRefGoogle Scholar
[9]Kegel, O. H., ‘On rings that are sums of two subrings’, J. Algebra1 (1964), 103–109.CrossRefGoogle Scholar
[10]
[10]Kelarev, A. V., ‘A sum of two locally nilpotent rings may be not nil’, Arch. Math. (Basel)60 (1993), 431–435.CrossRefGoogle Scholar
[11]
[11]Kelarev, A. V., ‘A primitive ring which is a sum of two Wedderburn radical subrings’, Proc. Amer. Math. Soc.125 (1997), 2191–2193.CrossRefGoogle Scholar
[12]
[12]Kelarev, A. V., ‘An answer to a question of Kegel on sums of rings’, Canad. Math. Bull.41 (1998), 79–80.CrossRefGoogle Scholar
[13]
[13]Kelarev, A. V. and McConnell, N. R., ‘Two versions of graded rings’, Publ. Math. (Debrecen)47 (1995) (3–4), 219–227.Google Scholar
[14]
[14]Kepczyk, M. and Puczyłowski, E. R., ‘On radicals of rings which are sums of two subrings’. Arch. Math. (Basel)66 (1996), 8–12.Google Scholar
[15]
[15]Kepczyk, M. and Puczyłowski, E. R., ‘Rings which are sums of two subrings’, J. Pure Appl. Algebra. to appear.Google Scholar
[16]
[16]Puczyłowski, E. R., ‘Some questions concerning radicals of associative rings’, Theory of Radicals, Szekszárd, 1991, Coll. Math. Soc. János Bolyai61 (1993), 209–227.Google Scholar
[17]
[17]Salwa, A., ‘Rings that are sums of two locally nilpotent subrings’, Comm. Algebra24 (1996)(12), 3921–3931.CrossRefGoogle Scholar