Results 281 to 290 of about 114,985 (325)

Head and neck cancer rehabilitation: the CaRe feasibility study. [PDF]

open access: yesSupport Care Cancer
Sheill G   +8 more
europepmc   +1 more source

On normal Fitting classes [PDF]

open access: yesArchiv Der Mathematik, 1998
The paper contains some characterizations of normal Fitting classes. Let \(\mathcal F\) be a Fitting class of finite soluble groups. It is proved that \(\mathcal F\) is a normal Fitting class if and only if every \(\mathcal F\)-dualpronormal subgroup has respectively one of the following embedding properties: normal, subnormal, pronormal, normally ...
D'ANIELLO A   +2 more
exaly   +7 more sources

Lattices of partially local fitting classes [PDF]

open access: yesSiberian Mathematical Journal, 2009
Summary: This article deals only with finite groups. We prove the surjectivity of the mapping from the lattice of all normal Fitting classes into the lattice of the Lockett section generated by the Fitting classes that are not Lockett classes. Moreover, we find a sufficient surjectivity condition for the mapping of the lattice of the Lockett section ...
N N Vorob'Ev
exaly   +5 more sources

Factorizations of fitting classes [PDF]

open access: yesFrontiers of Mathematics in China, 2012
This paper focuses on the theory of Fitting classes of finite groups. A class \(\mathcal F\) of groups is called a Fitting class if every normal subgroup of an \(\mathcal F\)-group is an \(\mathcal F\)-group and if the product of two normal \(\mathcal F\)-subgroups of a group is again an \(\mathcal F\)-group.
Nanying, Yang   +2 more
openaire   +4 more sources

Dualpronormality and fitting classes [PDF]

open access: yesCommunications in Algebra, 1998
In this paper we extend dualpronormality to an arbitrary Fitting class, introducing the notion of F-dualpronormality, and investigate groups having a structure of F-dualpronormal subgroups which is particularly rich or particularly poor.
D'ANIELLO, ALMA
core   +3 more sources

Maximal subclasses of local fitting classes [PDF]

open access: yesSiberian Mathematical Journal, 2008
Summary: A Fitting class \(\mathfrak F\) is said to be \(\pi\)-maximal if \(\mathfrak F\) is an inclusion maximal subclass of the Fitting class \(\mathfrak S_\pi\) of all finite soluble \(\pi\)-groups. We prove that \(\mathfrak F\) is a \(\pi\)-maximal Fitting class exactly when there is a prime \(p\in\pi\) such that the index of the \(\mathfrak F ...
Savelyeva, N. V., Vorob’ev, N. T.
openaire   +4 more sources

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