Results 51 to 60 of about 7,164 (304)

Some results on π-solvable and supersolvable groups

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1994
For a finite group G, ϕp(G), Sp(G), L(G) and S𝒫(G) are generalizations of the Frattini subgroup of G. We obtain some results on π-solvable, p-solvable and supersolvable groups with the help of the structures of these subgroups.
T. K. Dutta, A. Bhattacharyya
doaj   +1 more source

The Dade group of (almost) extraspecial $p$-groups. [PDF]

open access: yes, 2004
In this paper, we determine a presentation by explicit generators and relations for the Dade group of all (almost) extraspecial $p$-groups. The proof of the main result uses the cohomological properties of the Tits building corresponding to the natural ...
Mazza, Nadia, Bouc, Serge
core   +1 more source

COMPUTABILITY, ORDERS, AND SOLVABLE GROUPS [PDF]

open access: yesThe Journal of Symbolic Logic, 2020
AbstractThe main objective of this paper is the following two results. (1) There exists a computable bi-orderable group that does not have a computable bi-ordering; (2) there exists a bi-orderable, two-generated computably presented solvable group with undecidable word problem.
openaire   +3 more sources

The n-ary adding machine and solvable groups [PDF]

open access: yesInternational Journal of Group Theory, 2013
We describe under a various conditions abelian subgroups of the automorphism group $Aut(T_n)$ of the regular $n$-ary tree $T_n$, which are normalized by the $n$-ary adding machine $tau=(e,dots, e,tau)sigma_tau$ where $sigma_tau$ is the $n$-cycle $(0, 1 ...
Josimar Da Silva Rocha, Said Sidki
doaj  

Serological Benefit of SARS‐CoV‐2 Vaccination Relative to Infection in Children With Acute Lymphoblastic Leukemia

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Children with acute lymphoblastic leukemia (ALL) are at risk of severe outcomes from SARS‐CoV‐2 (SCV2). In the post‐pandemic context, where most children have been infected with SCV2, there are limited data on whether vaccination remains beneficial in children with ALL.
Janna R. Shapiro   +11 more
wiley   +1 more source

Heterogeneity in the Global Practice of Central Nervous System Staging in Pediatric Acute Lymphoblastic Leukemia

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Central nervous system (CNS) involvement in childhood acute lymphoblastic leukemia (ALL) is assessed by cell counting and cytomorphology from cerebrospinal fluid (CSF) and is used for treatment stratification worldwide. The ratio of “CNS2” patients in clinical trials ranges from 3% to 40%, with unclear prognostic significance ...
Laura Almási   +14 more
wiley   +1 more source

Eulerian character degree graphs of solvable groups

open access: yesAKCE International Journal of Graphs and Combinatorics
Let G be a finite group, let Irr(G) be the set of all complex irreducible characters of G and let cd(G) be the set of all degrees of characters in [Formula: see text] Let [Formula: see text] be the set of all primes that divide some degrees in [Formula ...
G. Sivanesan   +2 more
doaj   +1 more source

On Fitting groups whose proper subgroups are solvable [PDF]

open access: yesInternational Journal of Group Theory, 2016
This work is a continuation of [A‎. ‎O‎. ‎Asar‎, ‎‎‎On infinitely generated groups whose proper subgroups are solvable‎, ‎{em J‎. ‎Algebra}‎, ‎{bf 399} (2014) 870-886.]‎, ‎where it was shown‎ ‎that a perfect infinitely generated group whose proper ...
Ali Asar
doaj  

Finite groups whose all second maximal subgroups are cyclic

open access: yesOpen Mathematics, 2017
In this paper, we give a complete classification of the finite groups G whose second maximal subgroups are ...
Ma Li, Meng Wei, Ma Wanqing
doaj   +1 more source

On the residual solvability of generalized free products of solvable groups [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2011
special issue in honor of Laci Babai's 60th birthday: Combinatorics, Groups, Algorithms, and ...
Delaram Kahrobaei, Stephen Majewicz
doaj   +1 more source

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