Results 141 to 150 of about 484,592 (357)
Mathematical Methods in the Applied Sciences, EarlyView.The goal of this work is to look at how a nonlinear model describes hematopoiesis and its complexities utilizing commonly used techniques with historical and material links. Based on time delay, the Mackey–Glass model is explored in two instances. To offer a range, the relevance of the parameter impacting stability (bifurcation) is recorded.
Shuai Zhang +5 more
wiley +1 more source
Electronic Journal of Differential Equations, 2013 In this article we study a nonlinear parabolic system with nonlinear nonlocal boundary conditions. We prove the uniqueness of the solutions and establish the conditions for global solutions and non-global solutions.
Zhou Sen, Zuodong Yang
doaj
Mixed problem with nonlocal boundary conditions for a third-order partial differential equation of mixed type [PDF]
, 2001 M. Denche, A. L. Marhoune
openalex +1 more source
Mathematical Methods in the Applied Sciences, Volume 48, Issue 6, Page 6912-6917, April 2025.ABSTRACT Nowadays, a substantial portion of investigations concerning the symmetry analysis of differential equations predominantly adhere to a framework comprising the following key procedures: (i) the derivation of symmetries, (ii) the determination of an optimal system, (iii) the utilization of these symmetries to construct invariants or ...
A. Paliathanasis +2 more
wiley +1 more source
The One‐Dimensional Coulomb Hamiltonian: Properties of Its Birman–Schwinger Operator
Mathematical Methods in the Applied Sciences, EarlyView.ABSTRACT The objective of the present paper is to study in detail the properties of the Birman–Schwinger operator for a self‐adjoint realization of the one‐dimensional Hamiltonian with the Coulomb potential, both when the Hamiltonian is defined only on ℝ+$$ {\mathbb{R}}_{+} $$ and when it is defined on the whole real line.
S. Fassari +4 more
wiley +1 more source
On a class of nonlinear reaction‐diffusion systems with nonlocal boundary conditions [PDF]
, 2004 Abdelfatah Bouziani
openalex +1 more source
Mathematical Methods in the Applied Sciences, EarlyView.ABSTRACT In bio‐social models, cooperative behavior has evolved as an adaptive strategy, playing multi‐functional roles. One of such roles in populations is to increase the success of the survival and reproduction of individuals and their families or social groups.
Sangeeta Saha +2 more
wiley +1 more source
GALERKIN APPROXIMATION FOR A SEMI LINEAR PARABOLIC PROBLEM WITH NONLOCAL BOUNDARY CONDITIONS [PDF]
, 2004 Abdesslam Boutayeb, ABDELAZIZ CHETOUAN
openalex +1 more source
Existence of Normalized Solutions of a Hartree–Fock System With Mass Subcritical Growth
Mathematical Methods in the Applied Sciences, EarlyView.ABSTRACT In this paper, we are concerned with normalized solutions of a class of Hartree‐Fock type systems. By seeking the constrained global minimizers of the corresponding functional, we prove that the existence and nonexistence of normalized solutions.
Hua Jin +3 more
wiley +1 more source
Pointwise conditions in discrete boundary value problems with nonlocal boundary conditions
Applied Mathematics Letters, 2017 Abstract We consider summation equations having the form y ( t ) = γ ( t ) H ∑ i = 1 n α i y ξ i + λ ∑ s = 0 b G ( t , s ) f ( s , y ( s + 1 ) ) . By utilizing a new order cone, we are able to demonstrate the existence of at least one positive ...
openaire +2 more sources