Results 321 to 330 of about 17,346,798 (365)

Modeling methylene blue removal using magnetic chitosan carboxymethyl cellulose multiwalled carbon nanotube composite with genetic algorithms and regression techniques. [PDF]

Sci Rep
Yousefi M, Fallahizadeh S, Maleki Y, Sheikhmohammadi A, Rezagholizade-Shirvan A.   +4 more
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Chaos control and sensitivity analysis of climate change under green gases and carbon omission utilizing caputo fractional operator. [PDF]

Sci Rep
Ahmad A, Khan MS, Ozsahin DU, Ahmad H, Munir A, Radwan T.   +5 more
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Dynamic of a pest management system with hibernation of pests and impulsive nonlinear release of natural enemies. [PDF]

Sci Rep
Sun H, Jiao J, Dai X, Wu L.
europepmc   +1 more source

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Existence of positive solution for a planar Schrödinger-Poisson system with exponential growth

Journal of Mathematics and Physics, 2019
In this paper, we prove the existence of a positive solution with minimal energy for a planar Schrodinger-Poisson system, where the nonlinearity is a continuous function with exponential critical growth.
C. O. Alves, G. Figueiredo
semanticscholar   +1 more source

SUCCESSIVE ITERATIONS FOR UNIQUE POSITIVE SOLUTION OF A NONLINEAR FRACTIONAL Q-INTEGRAL BOUNDARY VALUE PROBLEM

The Journal of Applied Analysis and Computation, 2019
In this paper, under certain nonlinear growth conditions, we investigate the existence and successive iterations for the unique positive solution of a nonlinear fractional q-integral boundary problem by employing hybrid monotone method, which is a novel ...
Guotao Wang, Zhanbing Bai, Lihong Zhang
semanticscholar   +1 more source

The positiveness and the uniqueness of a solution

Economics Letters, 1985
Abstract This paper presents a sufficient condition which assures the positiveness and uniqueness of a solution for various economic equations and inequality systems.
Takao Fujimoto, Carmen Herrero
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Multiple solutions of positively homogeneous equations [PDF]

Nonlinear Analysis: Theory, Methods & Applications, 2002
The authors study the existence and multiplicity of periodic solutions to the following system \[ u''- Au + \mu u^+ - \nu u^- = v + h(t), \] where \(h\) is a continuous and \(T\)-periodic function, \(v\in \mathbb{R}^N\), and \(A\) is a symmetric matrix. The main results are the following: (1) Under some reasonable assumptions, this system has at least \
FONDA, ALESSANDRO, TORRES P.
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On positive solutions of a semilinear equation

Journal of Mathematical Sciences, 1996
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
V. A. Nikishkin, V. A. Kondratiev
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Positive solution for a quasilinear elliptic equation involving critical or supercritical exponent

, 2016
This paper concerns the quasilinear elliptic equation −Δu+u−Δ(u2)u=up−2u+μuq−2uinRN, where N ≥ 3, 2 0 sufficiently small, existence of a positive solution will be proved via variational methods together with truncation technique and L∞-estimate. The main
Haidong Liu
semanticscholar   +1 more source