Results 41 to 50 of about 18,240 (305)
On the smoothness of solutions of the third order nonlinear differential equation
Boundary Value Problems, 2017 In this work we study the following third order differential equation: 1 L y : = y ‴ + ( q ( x , y ) + λ ) y = f ∈ L 2 ( R ) , R = ( − ∞ , ∞ ) , λ > 0 , $$ Ly : = y''' + \bigl( q ( x,y ) + \lambda \bigr)y = f \in L_{2} ( \mathbb{R} ), \quad \mathbb{R}= (
Abdumauvlen S Berdyshev +2 more
doaj +1 more source
Axioms, 2020 In this paper, we consider a boundary value problem for a nonlinear partial differential equation of mixed type with Hilfer operator of fractional integro-differentiation in a positive rectangular domain and with spectral parameter in a negative ...
Tursun K. Yuldashev +1 more
doaj +1 more source
On a New Criterion for the Solvability of Non-Simple Finite Groups and m-Abelian Solvability
, 2021 This paper is devoted to introduce a sufficient condition for the solvability of finite groups. Also, it presents the concepts of m-abelian and m-cyclic solvability as new generalizations of solvability and polycyclicity, respectively.
Mohammad Abobala, Hasan Sankari
core +1 more source
Axioms, 2023 It is shown that for any integers k≥2, q≥2k and N≥k+q+2, there exists a real solvable Lie algebra of the first rank with a maximal torus of derivations t possessing the eigenvalue spectrum spec(t)=1,2,⋯,k,q,q+1⋯,N, a nilradical of the nilpotence index N ...
Rutwig Campoamor-Stursberg +1 more
doaj +1 more source
Irish Mathematical Society Bulletin, 1985 During the 1970s a series of impressive papers by Razmyslov settled the problem of the solvability of the Burnside variety \(B_ k\), that is, the variety of groups satisfying the law \(x^ k=1\). It has long been known that for \(k=2,3,6\) the groups in \(B_ k\) are solvable of length (at most) 1,2,3 respectively. Razmyslov exhibited non-solvable groups
openaire +2 more sources
Journal of Algebra, 2011 A finite-dimensional Lie algebra $L$ over a field $F$ is called an $A$-algebra if all of its nilpotent subalgebras are abelian. This is analogous to the concept of an $A$-group: a finite group with the property that all of its Sylow subgroups are abelian. These groups were first studied in the 1940s by Philip Hall, and are still studied today.
openaire +2 more sources
On nonlinear evolution equation of second order in Banach spaces
Open Mathematics, 2018 Here we study the existence of a solution and also the behavior of the existing solution of the abstract nonlinear differential equation of second order that, in particular, is the nonlinear hyperbolic equation with nonlinear main parts, and in the ...
Soltanov Kamal N.
doaj +1 more source
TINGKAT SOLVABILITAS PERUSAHAAN ASURANSI JIWA SYARIAH DI INDONESIA
Jurnal Akuntansi, 2020 This study aims to look at the mean difference of the solvability level of tabarru’ fund of sharia life insurance companies in Indonesia. The population of this research were full fledge life insurance companies from 2014 to 2019.
Nur Wachidah Yulianti
doaj +1 more source
Structural and Qualitative Analysis of the Romanian Banking System [PDF]
Annals of Dunarea de Jos University. Fascicle I : Economics and Applied Informatics, 2010 The banking sector, the predominant component of the Romanian financial system, had a relatively stable structure in the period 2005-2009 and has experienced significant consolidation, particularly in the years 2005-2006, this being sustained mainly by ...
Anisoara Niculina APETRI +2 more
doaj
Foundations of Computing and Decision Sciences, 2019 This essay’s content is rendered by the titles of the successive sections. 1. Effective solvability versus intuitive solvability. — 2. Decidability, i.e. effective solvability, in predicate logic. The speedup phenomenon — 3.
Marciszewski Witold
doaj +1 more source