Results 111 to 120 of about 6,453 (213)

Existence of maximal and minimal weak solutions and finite difference approximations for elliptic systems with nonlinear boundary conditions

Electronic Journal of Differential Equations
We establish the existence of maximal and minimal weak solutions between ordered pairs of weak sub- and super-solutions for a coupled system of elliptic equations with quasimonotone nonlinearities on the boundary.
Shalmali Bandyopadhyay, Thomas Lewis, Nsoki Mavinga   +2 more
doaj  

Qualitative analysis of a reaction-diffusion SIRS epidemic model with nonlinear incidence rate and partial immunity. [PDF]

Infect Dis Model, 2023
Wang J, Teng Z, Dai B.
europepmc   +1 more source

The sub-supersolution method for variable exponent double phase systems with nonlinear boundary conditions

, 2023
Umberto Guarnotta, Roberto Livrea, Patrick Winkert   +2 more
openalex   +2 more sources

Study of the Existence of Supersolutions for Nonlocal Equations with Gradient Terms [PDF]

, 2020
Begoña Barrios, Leandro M. Del Pezzo
openalex   +1 more source

Existence, uniqueness and multiplicity of positive solutions for some nonlocal singular elliptic problems

Electronic Journal of Differential Equations, 2017
In this article, using the sub-supersolution method and Rabinowitz-type global bifurcation theory, we prove some results on existence, uniqueness and multiplicity of positive solutions for some singular nonlocal elliptic problems.
Baoqiang Yan, Qianqian Ren
doaj  

Fractional double-phase nonlocal equation in Musielak-Orlicz Sobolev space

Boundary Value Problems
In this paper, we analyze the existence of solutions to a double-phase fractional equation of the Kirchhoff type in Musielak-Orlicz Sobolev space with variable exponents.
Tahar Bouali, Rafik Guefaifia, Salah Boulaaras   +2 more
doaj   +1 more source

Perspective Shape-from-Shading Problem: A Unified Convergence Result for Several Non-Lambertian Models. [PDF]

J Imaging, 2022
Tozza S.
europepmc   +1 more source

Existence and Nonexistence Results for Classes of Singular Elliptic Problem

Abstract and Applied Analysis, 2010
The singular semilinear elliptic problem -Δu+k(x)u-γ=λup in Ω, u>0 in Ω, u=0 on ∂Ω, is considered, where Ω is a bounded domain with smooth boundary in RN, k∈Clocα(Ω)∩C(Ω¯), and γ,p,λ are three positive constants.
Peng Zhang, Jia-Feng Liao
doaj   +1 more source

Location of zeros of non-trivial positive supersolutions to Schrödinger equations [PDF]

, 2019
Tomasz Klimsiak
openalex   +1 more source

Some local properties of subsolutons and supersolutions for a doubly nonlinear nonlocal parabolic $p$-Laplace equation [PDF]

, 2020
Agnid Banerjee, Prashanta Garain, Juha Kinnunen   +2 more
openalex   +1 more source