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Problemy Fiziki, Matematiki i Tekhniki (Problems of Physics, Mathematics and Technics), 2012, Issue 1(10), Pages 69–74
(Mi pfmt2)
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This article is cited in 1 scientific paper (total in 1 paper)
MATHEMATICS
On the smallest and the largest elements of the Lockett section of a fitting functor
E. A. Vit'ko P.M. Masherov Vitebsk State University, Vitebsk
Abstract:
In the paper analogues of the known in the theory of Fitting classes operators «$^*$», «$_ *$ » and the Lockett sections on the set of Fitting $\mathfrak{X}$-functors ($\mathfrak{X}$ is some non-empty Fitting class) are defined. By the Lockett section of a conjugate Fitting $\mathfrak{X}$-functor $f$ we mean the set $\mathrm{Locksec}(f) = \{g: g\text{ is a conjugate Fitting }\mathfrak{X}\text{-functor and }f^* = g^*\}$. It is proved that the Lockett section of a conjugate Fitting $\mathfrak{X}$-functor contains the largest element. Besides we describe conditions under which the Lockett section contains the smallest element.
Keywords:
Lockett's operation, Lockett section, Fitting $\mathfrak{X}$-functor.
Received: 03.10.2011
Citation:
E. A. Vit'ko, “On the smallest and the largest elements of the Lockett section of a fitting functor”, PFMT, 2012, no. 1(10), 69–74
Linking options:
https://www.mathnet.ru/eng/pfmt2 https://www.mathnet.ru/eng/pfmt/y2012/i1/p69
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