Results 91 to 100 of about 26,670 (302)

Reflecting Brownian Snake and a Neumann-Dirichlet Problem

open access: yes, 2007
: The paper deals with a Markov path-valued process : the reflecting Brownian snake. It is a particular case of the path-valued process former introduced by Le Gall.
Rue Des Saints-p`eres   +2 more
core  

Quasilinear ellipticity and the dirichlet problem

open access: yes, 1988
In this paper we prove some existence theorems for the Dirichlet problem in {Mathematical expression} 1,2(Q) for a quasilinear elliptic equation under assumptions of the Ambrosetti-Prodi type.
Chabrowski J.
core   +1 more source

Revisiting the Intellectual Legacy of H. Igor Ansoff: A Critical Analysis of His Contributions and Their Impact on the Evolution of Strategic Management

open access: yesStrategic Change, EarlyView.
ABSTRACT This systematic review examines how H. Igor Ansoff's theoretical contributions have evolved in contemporary strategic management through cluster analysis of 116 publications (1968–2024). Four distinct research clusters were identified, revealing that Ansoff's legacy has shifted from theoretical foundations to pedagogical applications and ...
Adiemir Hortega   +4 more
wiley   +1 more source

Dirichlet problem for second-order abstract differential equations

open access: yesElectronic Journal of Differential Equations, 2020
We study the well-posedness in the space of continuous functions of the Dirichlet boundary value problem for a homogeneous linear second-order differential equation u''+Au = 0, where A is a linear closed densely defined operator in a Banach space. We
Giovanni Dore
doaj  

Symmetry of Nodal Solutions for Singularly Perturbed Elliptic Problems on a Ball

open access: yes, 2004
In [40], it was shown that the following singularly perturbed Dirichlet problem \ep^2 \Delta u - u+ |u|^{p-1} u=0, \ \mbox{in} \ \Om,\] \[ u=0 \ \mbox{on} \ \partial \Om has a nodal solution u_\ep which has the least energy among all nodal solutions.
Winter, M   +5 more
core   +1 more source

Uniqueness for Neumann Problems for Nonlinear Elliptic Equations With Lower Order Terms

open access: yesMathematische Nachrichten, EarlyView.
ABSTRACT In this paper, we prove uniqueness results for weak solutions to a class of Neumann problems, whose prototype is λ(1+u2)(p−2)/2u−div((1+|∇u|2)(p−2)/2∇u)−div(c(x)(1+|u|2)(τ+1)/2)+b(x)(1+|∇u|2)(σ+1)/2=finΩ(1+|∇u|2)(p−2)/2∇u+c(x)(1+|u|2)(τ+1)/2)·n̲=0on∂Ω,$$\begin{equation*} {\begin{cases} {}\lambda {(1+ u^2)}^{(p-2)/2}u-{\operatorname{div}}({(1+|\
Maria Francesca Betta   +3 more
wiley   +1 more source

Dirichlet problem Characterization of regularity

open access: yesmanuscripta mathematica, 1994
The author studies the regularity of the solutions to the Dirichlet problem \[ Lu\equiv -(a_{ij} u_{x_ i} )_{x_ j}= f \quad\text{in }\Omega, \qquad u=0 \quad \text{in }\partial\Omega \tag{1} \] where \(\mu\) is a given bounded variation measure on \(\Omega\) (bounded open subset of \(\mathbb{R}^ n\)), \(a_{ij}= a_{ji}\in L^ \infty (\Omega)\), \(i,j= 1,\
openaire   +2 more sources

Dirichlet problem associated to a non-local diffusion operator with sourse

open access: yes, 2010
Estudiamos el problema con condiciones de Dirichlet de valor inicial para un operador de difusión no local no lineal con fuente en un dominio acotado suave.
Hernández Becerra, Yaneth Rocío
core  

Dirichlet problem on locally finite graphs

open access: yes, 2007
In this paper, we study the existence and uniqueness of solutions to the vertex-weighted Dirichlet problem on locally finite graphs. Let B be a subset of the vertices of a graph G. The Dirichlet problem is to find a function whose discrete Laplacian on G⧹
Javaheri, Mohammad, Mohammad Javaheri
core   +1 more source

Numerical Investigation of a Diffusive SIR Model: Focus on Positivity Preservation

open access: yesMathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT In this paper, we consider a system of semilinear partial differential equations (PDEs) representing a spatially extended SIR epidemic model. A brief analytical investigation of the well‐posedness and positivity of the solutions is provided in the appendix, while the main focus is on the numerical treatment of the model.
Rahele Mosleh   +2 more
wiley   +1 more source

Home - About - Disclaimer - Privacy