Results 81 to 90 of about 6,600 (212)
Laplace’s equation with concave and convex boundary nonlinearities on an exterior region
Boundary Value Problems, 2019 This paper studies Laplace’s equation −Δu=0 $-\Delta u=0$ in an exterior region U⊊RN $U\varsubsetneq {\mathbb{R}}^{N}$, when N≥3 $N\geq 3$, subject to the nonlinear boundary condition ∂u∂ν=λ|u|q−2u+μ|u|p−2u $\frac{\partial u}{\partial \nu }=\lambda \vert
Jinxiu Mao, Zengqin Zhao, Aixia Qian
doaj +1 more source
Demographic buffering in natural populations: A multi‐level perspective
Journal of Animal Ecology, EarlyView.We introduce a multi‐level framework that unites stochastic elasticities with nonlinear selection to test demographic buffering. Applying it across mammals reveals a key insight: ecological robustness to variability often decouples from evolutionary constraint, reshaping how we understand resilience under environmental stochasticity.
Gabriel Silva Santos +4 more
wiley +1 more source
Sinking peatlands: Optimal control of subsidence
American Journal of Agricultural Economics, EarlyView.Abstract Land subsidence threatens the living conditions of about 1.2 billion people worldwide in deltaic regions characterized by soft top soil. Economic activity in these areas requires lowering groundwater levels to keep the land sufficiently dry, which leaves future generations worse off by accelerating subsidence and increasing future costs.
Suphi Sen +2 more
wiley +1 more source
Multiple positive solutions for a critical elliptic problem with concave and convex nonlinearities
Electronic Journal of Differential Equations, 2014 In this article, we study the multiplicity of positive solutions for a semi-linear elliptic problem involving critical Sobolev exponent and concave-convex nonlinearities. With the help of Nehari manifold and Ljusternik-Schnirelmann category, we prove
Haining Fan
doaj
A note on a dirichlet problem with concave-convex nonlinearity
Mathematica Slovaca, 2010 Abstract We prove an existence principle that would apply for elliptic problems with nonlinearity separating into a difference of derivatives of two convex functions in the case when the growth conditions are imposed only on the minuend term. We present abstract result and its application. We modify the so called dual variational method.
openaire +2 more sources
Corruption Detection Through Textual Analysis: Evidence From Eurozone Banks
Business Ethics, the Environment &Responsibility, EarlyView.ABSTRACT This research investigates the disclosure of banking institutions by analyzing their annual reports to identify the determinants capable of signaling possible corruption scandals. A textual analysis was conducted on the financial reports of 42 Eurozone banks from the period 2013 to 2022.
Rodolfo Damiano +3 more
wiley +1 more source
Real‐Time Conformal Maps and Parameterizations
Computer Graphics Forum, EarlyView.Abstract We present a simple algorithm to conformally map between two simple and bounded planar domains based on the concept of harmonic measure, which is a conformal invariant. With suitable preprocessing, the algorithm is fast enough to compute all possible conformal maps (having three real degrees of freedom) between the two domains in real time in
Q. Chang, C. Gotsman, K. Hormann
wiley +1 more source
Stein-Weiss problems via nonlinear Rayleigh quotient for concave-convex nonlinearities
Journal of Mathematical Analysis and ApplicationsIn the present work, we consider existence and multiplicity of positive solutions for nonlocal elliptic problems driven by the Stein-Weiss problem with concave-convex nonlinearities defined in the whole space $\mathbb{R}^N$. More precisely, we consider the following nonlocal elliptic problem: \begin{equation*} - Δu + V(x)u = λa(x) |u|^{q-2} u ...
Silva, Edcarlos D. +2 more
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A Probabilistic Scheme for Fully Nonlinear Nonlocal Parabolic PDEs with singular L\'evy measures
, 2011 We introduce a Monte Carlo scheme for fully nonlinear parabolic nonlocal PDE's whose nonlinearity in of Hamilton-Jacobi-Bellman-Isaacs (HJBI for short). We avoid the difficulties of infinite L\'evy measure by truncation of the L\'evy integral.
Fahim, Arash
core +1 more source
Decision Sciences, EarlyView.Abstract Trust and fairness are critical to the sustainable development of the sharing economy, particularly in platform–supplier relationships, where numerous individual suppliers offer access to their durable assets without transferring ownership. Motivated by the real‐world phenomenon of personalized wages and informed through direct interactions ...
Ying Yin, Xishu Li
wiley +1 more source