Results 1 to 10 of about 867 (75)

Asymptotic behavior and uniqueness of boundary blow-up solutions to elliptic equations [PDF]

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2015
In this paper, under some structural assumptions of weight function $b(x)$ and nonlinear term $f(u)$, we establish the asymptotic behavior and uniqueness of boundary blow-up solutions to semilinear elliptic equations \begin{equation*} \begin{cases ...
Qiaoyu Tian, Yonglin Xu
doaj   +5 more sources

Asymptotic behaviour of positive large solutions of quasilinear logistic problems [PDF]

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2015
We are interested in the asymptotic analysis of singular solutions with blow-up boundary for a class of quasilinear logistic equations with indefinite potential.
Ramzi Alsaedi   +3 more
doaj   +4 more sources

Exact boundary behavior of the unique positive solution for singular second-order differential equations [PDF]

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2015
In this paper, we give the exact asymptotic behavior of the unique positive solution to the following singular boundary value problem \begin{equation*} \begin{cases} -\frac{1}{A}(Au^{\prime })^{\prime }=p(x)g(u),\quad x\in (0,1), \\ u>0,\quad \text{in ...
Imed Bachar, Habib Maagli
doaj   +3 more sources

Asymptotic behavior of positive solutions of a semilinear Dirichlet problem in the annulus [PDF]

open access: yesOpuscula Mathematica, 2015
In this paper, we establish existence and asymptotic behavior of a positive classical solution to the following semilinear boundary value problem: \[-\Delta u=q(x)u^{\sigma }\;\text{in}\;\Omega,\quad u_{|\partial\Omega}=0.\] Here \(\Omega\) is an annulus
Safa Dridi, Bilel Khamessi
doaj   +1 more source

Existence and boundary behavior of positive solutions for a Sturm-Liouville problem [PDF]

open access: yesOpuscula Mathematica, 2016
In this paper, we discuss existence, uniqueness and boundary behavior of a positive solution to the following nonlinear Sturm-Liouville problem \[\begin{aligned}&\frac{1}{A}(Au^{\prime })^{\prime }+a(t)u^{\sigma}=0\;\;\text{in}\;(0,1),\\ &\lim\limits_{t ...
Syrine Masmoudi, Samia Zermani
doaj   +1 more source

Beurling slow and regular variation [PDF]

open access: yes, 2014
We give a new theory of Beurling regular variation ( Part II). This includes the previously known theory of Beurling slow variation ( Part I) to which we contribute by extending Bloom's theorem.
Bingham, N. H., Ostaszewski, A. J.
core   +2 more sources

Cauchy's functional equation and extensions: Goldie's equation and inequality, the Go{\l}\k{a}b-Schinzel equation and Beurling's equation [PDF]

open access: yes, 2014
The Cauchy functional equation is not only the most important single functional equation, it is also central to regular variation. Classical Karamata regular variation involves a functional equation and inequality due to Goldie; we study this, and its ...
Bingham, N. H., Ostaszewski, A. J.
core   +3 more sources

General regular variation, Popa groups and quantifier weakening [PDF]

open access: yes, 2020
We introduce general regular variation, a theory of regular variation containing the existing Karamata, Bojanic-Karamata/de Haan and Beurling theories as special cases.
Bingham, N. H., Ostaszewski, Adam
core   +1 more source

Existence and asymptotic behavior of positive solutions of a semilinear elliptic system in a bounded domain [PDF]

open access: yesOpuscula Mathematica, 2016
Let \(\Omega\) be a bounded domain in \(\mathbb{R}^{n}\) (\(n\geq 2\)) with a smooth boundary \(\partial \Omega\). We discuss in this paper the existence and the asymptotic behavior of positive solutions of the following semilinear elliptic system ...
Majda Chaieb   +2 more
doaj   +1 more source

Existence and boundary behavior of weak solutions for Schrödingerean TOPSIS equations

open access: yesBoundary Value Problems, 2018
In this paper, we prove that there exists a weak solution for Schrödingerean technique for order performance by similarity (TOPSIS) equations on cylinders.
Yong Wang   +6 more
doaj   +1 more source

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