Results 91 to 100 of about 1,228,906 (333)

Radial positive solutions for a nonpositone problem in an annulus

Electronic Journal of Differential Equations, 2014
The main purpose of this article is to prove the existence of radial positive solutions for a nonpositone problem in an annulus when the nonlinearity is superlinear and has more than one zero.
Said Hakimi, Abderrahim Zertiti
doaj  

Multiple positive solutions for a coupled system of fractional multi-point BVP with p-Laplacian operator

Advances in Difference Equations, 2017
We investigate the existence of positive solutions for a system of fractional multi-point BVP with p-Laplacian operator. Our main tool is the fixed point theorem due to Leggett-Williams.
Yang Liu, Dapeng Xie, Chuanzhi Bai, Dandan Yang   +3 more
doaj   +1 more source

Stationary Cylindrically Symmetric Solution Approaching Einstein's Cosmological Solution [PDF]

arXiv, 2001
Here we describe a stationary cylindrically symmetric solution of Einstein's equation with matter consisting of a positive cosmological and rotating dust term. The solution approaches Einstein static universe solution.
arxiv  

Existence of positive solutions for systems of bending elastic beam equations

Electronic Journal of Differential Equations, 2012
This article discusses the existence of positive solutions for systems of bending elastic beam equations. In mechanics, the problem describes the deformations of two elastic beams in equilibrium state, whose two ends are simply supported.
Ping Kang, Zhongli Wei
doaj  

The thioredoxin‐like and one glutaredoxin domain are required to rescue the iron‐starvation phenotype of HeLa GLRX3 knock out cells

FEBS Letters, EarlyView.
Glutaredoxin (Grx) 3 proteins contain a thioredoxin domain and one to three class II Grx domains. These proteins play a crucial role in iron homeostasis in eukaryotic cells. In human Grx3, at least one of the two Grx domains, together with the thioredoxin domain, is essential for its function in iron metabolism.
Laura Magdalena Jordt, Manuela Gellert, Finja Zelms, Sander Bekeschus, Christopher Horst Lillig   +4 more
wiley   +1 more source

Local uniqueness of positive solutions for a coupled system of fractional differential equations with integral boundary conditions

Advances in Difference Equations, 2017
In this paper, we study a coupled system of fractional boundary value problems subject to integral boundary conditions. By applying a recent fixed point theorem in ordered Banach spaces, we investigate the local existence and uniqueness of positive ...
Chen Yang, Chengbo Zhai, Lingling Zhang
doaj   +1 more source

Positive and sign-changing clusters around saddle points of the potential for nonlinear elliptic problems [PDF]

arXiv, 2009
We study the existence of positive and sign-changing multipeak solutions for the stationary Nonlinear Schroedinger Equation. Here no symmetry on $V$ is assumed. It is known that this equation has positive multipeak solutions with all peaks approaching a local maximum of the potential.
arxiv  

P‐glycoprotein modulates the fluidity gradient of the plasma membrane of multidrug resistant CHO cells

FEBS Letters, EarlyView.
To explore the impact of the overexpression of the multidrug‐transporter P‐glycoprotein (ABCB1) on membrane fluidity, we compared the transversal gradient of mobility and microviscosity in plasma membranes of drug‐sensitive Chinese hamster ovary cells (AuxB1) and their multidrug‐resistant derivatives (B30) using the fluorescent n‐(9‐anthroyloxy) fatty ...
Roger Busche, John R. Riordan, Burkhard Tümmler   +2 more
wiley   +1 more source

Nonexistence of radial positive solutions for a nonpositone system in an annulus

Electronic Journal of Differential Equations, 2011
In this article we study the nonexistence of radial positive solutions for a nonpositone system in an annulus by using energy analysis and comparison methods.
Said Hakimi
doaj  

A remark on solutions of the equation $\sum\limits_{i=1}^k r_i=n$ in positive integers [PDF]

, 1958
Ladislav Kosmák
openalex   +1 more source