Results 91 to 100 of about 153 (146)

Positive solutions for a class of infinite semipositone problems involving the p-Laplacian operator

Le Matematiche, 2013
We discuss the existence of a positive solution to a given infinite semipositone problem.
M. Choubin, Sayyyed H. Rasouli, Mohammad B. Ghaemi, Ghasem A. Afrouzi   +3 more
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Nonlinear elliptic equations with self-adjoint integro-differential operators and measure data under sign condition on the nonlinearity

Advanced Nonlinear Studies
We study the existence problem for semilinear equations (E): −Au = f(⋅, u) + μ, with Borel measure μ and operator A that generates a symmetric Markov semigroup.
Klimsiak Tomasz
doaj   +1 more source

Existence results for a class of Kirchhoff type systems with Caffarelli-Kohn-Nirenberg exponents

Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2016
This paper is concerned with the existence of positive solutions for a class of infinite semipositone kirchhoff type systems with singular weights. Our aim is to establish the existence of positive solution for λ large enough.
Afrouzi G. A., Zahmatkesh H., Shakeri S.
doaj   +1 more source

Infinite semipositone problems with indefinite weight and asymptotically linear growth forcing-terms

Electronic Journal of Differential Equations, 2013
In this work, we study the existence of positive solutions to the singular problem $$displaylines{ -Delta_{p}u = lambda m(x)f(u)-u^{-alpha} quad hbox{in }Omega,cr u = 0 quad hbox{on }partial Omega, }$$ where $lambda$ is positive parameter, $Omega $
Ghasem A. Afrouzi, Saleh Shakeri
doaj  

Existence and multiplicity of solutions to superlinear periodic parabolic problems

Electronic Journal of Differential Equations, 2018
Let $\Omega\subset\mathbb{R}^{N}$ be a smooth bounded domain and let a,b,c be three (possibly discontinuous and unbounded) T-periodic functions with $c\geq0$.
Tomas Godoy, Uriel Kaufmann
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The sub-supersolution method for Kirchhoff systems: applications [PDF]

, 2015
Giovany M. Figueiredo, Antonio Suárez
openaire   +1 more source

Existence of three solutions for a two-point singular boundary-value problem with an unbounded weight

Electronic Journal of Differential Equations, 2016
We show the existence of three solution for the singular boundary-value problem $$\displaylines{ -z'' = h(t) \frac{f(z)}{z^\beta} \quad \text{in } (0,1) ,\cr z(t)> 0 \quad \text{in } (0,1),\cr z(0)= z(1)=0 , }$$ where $ 0 < \beta 0$ and ...
Dhany Rajendran, Eunkyung Ko, Ratnasingham Shivaji   +2 more
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Propagation of Epidemics Along Lines with Fast Diffusion. [PDF]

Bull Math Biol, 2020
Berestycki H, Roquejoffre JM, Rossi L.
europepmc   +1 more source

Oscillatory Carreau flows in straight channels. [PDF]

R Soc Open Sci, 2020
Tabakova S, Kutev N, Radev S.
europepmc   +1 more source

Strictly positive solutions for one-dimensional nonlinear elliptic problems

Electronic Journal of Differential Equations, 2014
We study the existence and nonexistence of strictly positive solutions for the elliptic problems $Lu=m(x) u^p$ in a bounded open interval, with zero boundary conditions, where $L$ is a strongly uniformly elliptic differential operator, $p\in(0,1 ...
Uriel Kaufmann, Ivan Medri
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