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Near-rings in which each element is a power of itself

Published online by Cambridge University Press:  17 April 2009

Howard E. Bell
Affiliation:
Brock University, St Catharines, Ontario, Canada.
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Abstract

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Let R denote a near-ring such that for each xR, there exists an integer n(x) > 1 for which xn(x) = x. We show that the additive group of R is commutative if 0.x; = 0 for all xR and every non-trivial homomorphic image R¯ of R contains a non-zero idempotent e commuting multiplicatively with all elements of R¯. As the major consequence, we obtain the result that if R is distributively-generated, then R is a ring – a generalization of a recent theorem of Ligh on boolean near-rings.

Type
Research Article
Copyright
Copyright © Australian Mathematical Society 1970

References

[1]Bell, Howard E., “Duo rings: some applications to commutativity theorems”, Canad. Math. Bull. 11 (1968), 375380.CrossRefGoogle Scholar
[2]Clay, James R., “The near-rings on groups of low order”, Math. Z. 104 (1968), 364371.CrossRefGoogle Scholar
[3]Fröhlich, A., “Distributively generated near-rings, (I. Ideal Theory)”, Proc. London Math. Soc. (3), 8 (1958), 7694.CrossRefGoogle Scholar
[4]Herstein, I.N., “An elementary proof of a theorem of Jacobson”, Duke Math. J. 21 (1954), 4548.CrossRefGoogle Scholar
[5]Ligh, Steve, “On distributively generated near-rings”, Proc. Edinburgh Math. Soc. 16 (1969), 239243.CrossRefGoogle Scholar
[6]Ligh, Steve, “On boolean near-rings”, Bull. Austral. Math. Soc. 1 (1969), 375379.CrossRefGoogle Scholar
[7]Zemmer, J.L., “The additive group of an infinite near-field is abelian”, J. London Math. Soc. 44 (1969), 6567.CrossRefGoogle Scholar