Results 21 to 30 of about 62 (60)

Nonnegative solutions for a class of fourth order singular eigenvalue problems

In this paper, we discuss the existence of nonnegative solutions to a fourth order singular boundary value problem at two points. Our result is based on a recent Birkhoff-Kellogg type fixed point theorem developed on translates of a cone on a Banach ...
GEORGIEV, Svetlin Georgiev, BOUCHAL, Lydia, MEBARKI, Karima   +2 more
core   +1 more source

Generalised Kolmogorov-Petrovskii-Piskunov equation of fractional order: Power series and shifted Legendre collocation methods

Partial Differential Equations in Applied Mathematics
The classical Kolmogorov-Petrovskii-Piskunov (KPP) equation describes physical phenomena such as combustion, chemical reaction, evolution of dominant genes, and propagation of nerve pulses.
Richard Olu Awonusika, Abayomi Samuel Oke   +1 more
doaj   +1 more source

Multiple and unique nontrivial solutions for fractional differential equations with singular property and derivatives contained in the nonlinear term

Demonstratio Mathematica
In this article, a class of p-Laplacian fractional differential equations with multiple derivative terms in the nonlinearity is studied. First, the Green’s function is derived and its key properties are analyzed, enabling us to construct a suitable cone ...
Guo Limin, Zhang Bing, Li Cheng, Chen Jinyan   +3 more
doaj   +1 more source

Coupled system of sequential partial σ (., .) Hilfer fractional differential equations with weighted double phase operator: Existence, Hyers-Ulam stability and controllability

In this paper, we are concerned by a sequential partial Hilfer fractional differential system with weighted double phase operator. First, we introduce the concept of Hyers-Ulam stability with respect to an operator L for an abstract equation of the ...
BENKACI-ALI, Nadir
core   +1 more source

Abstract method of upper and lower solutions and application to singular boundary value problems: Dedicated to Professor Ioan A. Rus on the occasion of his 80th anniversary

, 2016
The method of upper and lower solutions is presented for the fixed point problem associated to operators which are compositions of a linear operator and a nonlinear mapping.
PRECUM, Radu
core  

Mathematical Analysis on Current-Voltage Relations via Classical Poisson-Nernst-Planck Systems with Nonzero Permanent Charges under Relaxed Electroneutrality Boundary Conditions. [PDF]

Membranes (Basel), 2023
Wang Y, Zhang L, Zhang M.
europepmc   +1 more source

Eigenvalue problems for singular multi-point dynamic equations on time scales

Electronic Journal of Differential Equations, 2017
In this article, we study a singular multi-point dynamic eigenvalue problem on time scales. We find existence of positive solutions by constructing the Green's function and studying its positivity eigenvalue intervals. Two examples are given to
Abdulkadir Dogan
doaj  

Competition between Cations via Classical Poisson-Nernst-Planck Models with Nonzero but Small Permanent Charges. [PDF]

Membranes (Basel), 2021
Zhang M.
europepmc   +1 more source

The existence of nonnegative solutions for a nonlinear fractional q-differential problem via a different numerical approach. [PDF]

J Inequal Appl, 2021
Samei ME, Ahmadi A, Hajiseyedazizi SN, Mishra SK, Ram B.   +4 more
europepmc   +1 more source

MicroRNAs in Huntington's Disease: Diagnostic Biomarkers or Therapeutic Agents? [PDF]

Front Cell Neurosci, 2021
Dong X, Cong S.
europepmc   +1 more source