Results 81 to 90 of about 2,643 (218)

Local Regularity For Elliptic Systems With p, q-Growth

open access: yesBruno Pini Mathematical Analysis Seminar, 2015
In this paper we consider quasilinear elliptic systems with p, q-growth. We discuss some aspects of the theory of regularity for systems and we state a local boundedness result for weak solutions, obtained in collaboration with P. Marcellini. Moreover, a
Giovanni Cupini, Elvira Mascolo
doaj   +1 more source

Trade costs, infrastructure, and dynamics in a global economy

open access: yesInternational Journal of Economic Theory, Volume 22, Issue 1, Page 40-62, March 2026.
Abstract This study develops a dynamic two‐country model with trade costs linked to international infrastructure stock. With variable markups and firm heterogeneity, the welfare impact of trade costs depends on firms' cost distribution. Governments engage in a dynamic public investment game, leading to multiple steady states. The dynamic equilibrium of
Akihiko Yanase
wiley   +1 more source

The Existence and Behavior of Solutions for Nonlocal Boundary Problems

open access: yesBoundary Value Problems, 2009
The purpose of this work is to investigate the uniqueness and existence of local solutions for the boundary value problem of a quasilinear parabolic equation. The result is obtained via the abstract theory of maximal regularity. Applications are given to
Shengzhou Zheng, Yuandi Wang
doaj   +2 more sources

Unified Quasilinear Theory of Weakly Turbulent Plasmas [PDF]

open access: yesThe Physics of Fluids, 1968
A quasilinear theory is formulated which includes the microscopic fluctuation fields as well as the coherent waves. The study emphasizes those cases in which the propagating mode of the fluctuation field gives rise to a dominant contribution to the particle correlation.
openaire   +2 more sources

Three nontrivial solutions for the p-Laplacian Neumann problems with a concave nonlinearity near the origin

open access: yes, 2010
We consider a nonlinear Neumann problem driven by the p- Laplacian, with a right-hand side nonlinearity which is concave near the origin. Using variational techniques, combined with the method of upper-lower solutions and with Morse theory, we show ...
Staicu, Vasile   +2 more
core  

Multibump solutions for quasilinear elliptic equations

open access: yes, 2012
The current paper is concerned with constructing multibump type solutions for a class of quasilinear Schrödinger type equations including the Modified Nonlinear Schrödinger Equations.
Liu, Jia-Quan   +2 more
core   +1 more source

A weak comparison principle for some quasilinear elliptic operators: it compares functions belonging to different spaces [PDF]

open access: yes, 2018
summary:We shall prove a weak comparison principle for quasilinear elliptic operators $-{\rm div}(a(x,\nabla u))$ that includes the negative $p$-Laplace operator, where $a\colon \Omega \times \Bbb R^N \rightarrow \Bbb R^N$ satisfies certain conditions ...
Unai, Akihito
core   +1 more source

Existence of solutions for quasilinear elliptic systems involving critical exponents and Hardy terms

open access: yesElectronic Journal of Differential Equations, 2013
Using variational methods, including the Ljusternik-Schnirelmann theory, we prove the existence of solutions for quasilinear elliptic systems with critical Sobolev exponents and Hardy terms.
Dengfeng Lu
doaj  

Chorus Wave–Driven Electron Dynamics in the Van Allen Belts: From Coherence to Diffusion

open access: yesAGU Advances
The Van Allen radiation belts contain relativistic electrons trapped by Earth's magnetic field, posing serious risks to spacecraft. Chorus waves are known to accelerate these electrons via resonant interactions, but these interactions are inherently ...
Xin Tao   +4 more
doaj   +1 more source

On the existence of a conditionally periodic solution of one quasilinear differential system in the critical case

open access: yesВестник КазНУ. Серия математика, механика, информатика, 2019
In the theory of nonlinear oscillations one often encounters conditionally periodic oscillations resulting from the superposition of several oscillations with frequencies incommensurable with each other.
Zh. Suleimenov
doaj   +1 more source

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