Results 21 to 30 of about 11,870,254 (353)

Attractor of the nonclassical diffusion equation with memory on time- dependent space

open access: yesAIMS Mathematics, 2023
We consider the dynamic behavior of solutions for a nonclassical diffusion equation with memory $ u_{t}-\varepsilon(t) \triangle u_{t}- \triangle u-\int_{0}^{\infty}\kappa(s)\triangle u(t-s)ds+f(u) = g(x) $ on time-dependent space for which the ...
Jing Wang, Qiaozhen Ma, Wenxue Zhou
doaj   +1 more source

Existence of positive solutions for a class of $p$-Laplacian type generalized quasilinear Schrödinger equations with critical growth and potential vanishing at infinity

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2023
In this paper, we study the existence of positive solutions for the following generalized quasilinear Schrödinger equation \begin{equation*} -\operatorname{div}(g^p(u)|\nabla u|^{p-2}\nabla u)+g^{p-1}(u)g'(u)|\nabla u|^p+V(x)|u|^{p-2}u =K(x)f(u)+Q(x)g(u)|
Zhen Li
doaj   +1 more source

Existence and concentration of solutions for nonautomous Schrödinger–Poisson systems with critical growth

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2017
In this paper, we study the following Schrödinger–Poisson system \begin{equation*} \begin{cases} -\Delta u+u+\mu \phi u=\lambda f(x,u)+u^5\quad & \mbox{in }\mathbb{R}^3,\\ -\Delta \phi=\mu u^2\quad & \mbox{in }\mathbb{R}^3, \end{cases} \end{equation ...
Yiwei Ye
doaj   +1 more source

Growth and the public sector: a critique of the critics [PDF]

open access: yesEuropean Journal of Political Economy, 1999
Abstract In a recent review article, Agell et al. (ALO) [Agell, J., Lindh, T., Ohlsson, H., 1997. Growth and the public sector: a critical review essay. European Journal of Political Economy 13, 33–52.] claim that theoretical and empirical evidence does not allow any conclusion on whether there is a relationship between the rate of economic growth ...
Fölster, Stefan, Henrekson, Magnus
openaire   +4 more sources

Choquard-type equations with Hardy–Littlewood–Sobolev upper-critical growth

open access: yesAdvances in Nonlinear Analysis, 2018
We are concerned with the existence of ground states and qualitative properties of solutions for a class of nonlocal Schrödinger equations. We consider the case in which the nonlinearity exhibits critical growth in the sense of the Hardy–Littlewood ...
D. Cassani, Jianjun Zhang
semanticscholar   +1 more source

The Critical Periphery in the Growth of Social Protests

open access: yesPLOS ONE, 2015
Social media have provided instrumental means of communication in many recent political protests. The efficiency of online networks in disseminating timely information has been praised by many commentators; at the same time, users are often derided as "slacktivists" because of the shallow commitment involved in clicking a forwarding button.
Barberá, Pablo   +6 more
openaire   +5 more sources

Agglomeration and Growth in the NEG: A Critical Assessment [PDF]

open access: yes, 2007
This chapter is divided into two parts. In the first part we review the main results of a typical "New Economic Geography and Growth" (NEGG) model (Baldwin and Martin, 2003) and assess the contribution of this literature to the issue of long-run income gaps between countries.
Cerina, F., Pigliaru, F.
openaire   +5 more sources

Multiplicity and concentration behaviour of solutions for a fractional Choquard equation with critical growth

open access: yesAdvances in Nonlinear Analysis, 2020
In this paper, we study the singularly perturbed fractional Choquard ...
Yang Zhipeng, Zhao Fukun
doaj   +1 more source

A class of semipositone p-Laplacian problems with a critical growth reaction term [PDF]

open access: yesAdvances in Nonlinear Analysis, 2016
We prove the existence of ground state positive solutions for a class of semipositone p-Laplacian problems with a critical growth reaction term. The proofs are established by obtaining crucial uniform C1,α a priori estimates and by concentration ...
K. Perera, R. Shivaji, Inbo Sim
semanticscholar   +1 more source

Multi-bump solutions for the magnetic Schrödinger–Poisson system with critical growth

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2022
In this paper, we are concerned with the following magnetic Schrödinger–Poisson system \begin{align*} \begin{cases} -(\nabla+i A(x))^{2}u+(\lambda V(x)+1)u+\phi u=\alpha f(\left | u\right |^{2})u+\vert u\vert^{4}u,& \text{ in }\mathbb{R}^{3}, \\ -\Delta \
Chao Ji   +2 more
doaj   +1 more source

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