Results 41 to 50 of about 2,303 (168)

Resonance and quasilinear ellipticity [PDF]

open access: yesTransactions of the American Mathematical Society, 1986
Two resonance-type existence theorems for periodic solutions of second order quasilinear elliptic partial differential equations are established. The first theorem is a best possible result, and the second theorem presents conditions which are both necessary and sufficient.
openaire   +1 more source

Influence of Competitive C–P Segregation on Austenite Grain Growth in Iron Alloys

open access: yessteel research international, Volume 97, Issue 3, Page 1432-1443, March 2026.
This study investigates how carbon influences phosphorus‐induced solute drag effects during isothermal annealing of austenite grain growth in Fe–C–P alloys. Using in situ high‐temperature laser scanning confocal microscopy and density functional theory simulations, it demonstrates that carbon above a critical temperature significantly reduces P ...
Maximilian Kern   +4 more
wiley   +1 more source

Bifurcation for elliptic forth-order problems with quasilinear source term

open access: yesElectronic Journal of Differential Equations, 2016
We study the bifurcations of the semilinear elliptic forth-order problem with Navier boundary conditions $$\displaylines{ \Delta^2 u - \hbox{div} ( c(x) \nabla u ) = \lambda f(u) \quad \text{in }\Omega, \cr \Delta u = u = 0 \quad\text{on } \partial \
Soumaya Saanouni, Nihed Trabelsi
doaj  

Diffusion Coefficients for Resonant Relativistic Wave‐Particle Interactions Using the PIRAN Code

open access: yesEarth and Space Science, Volume 13, Issue 3, March 2026.
Abstract Quasilinear diffusion coefficients can be used to model the response of charged particles to resonant wave‐particle interactions. The calculation of these coefficients is sufficiently complicated and arduous to render it prohibitive to many potential users, because of the expense in time spent developing the code.
Oliver Allanson   +12 more
wiley   +1 more source

Existence and uniqueness of classical solutions to second-order quasilinear elliptic equations

open access: yesElectronic Journal of Differential Equations, 2010
This article studies the existence of solutions to the second-order quasilinear elliptic equation $$ - abla cdot(a(u) abla u) +mathbf{v}cdot abla u=f $$ with the condition $u(mathbf{x}_0)=u_0$ at a certain point in the domain, which is the 2 or ...
Diane L. Denny
doaj  

Phase‐Space Synchronization Driven by Moon‐Magnetosphere Coupling in Gas Giants

open access: yesJournal of Geophysical Research: Space Physics, Volume 131, Issue 3, March 2026.
Abstract We present a new theoretical framework to describe the rapid and spatially localized loss of energetic particles in planetary radiation belts, focusing on interactions between gas giant magnetospheres and their moons. Observations show that flux depletions—known as microsignatures—often refill on timescales comparable to a single drift period,
Adnane Osmane   +2 more
wiley   +1 more source

Existence of multiple solutions for quasilinear elliptic equations in R^N

open access: yesElectronic Journal of Differential Equations, 2014
In this article, we establish the multiplicity of positive weak solution for the quasilinear elliptic equation $$\displaylines{ -\Delta_p u+\lambda|u|^{p-2}u=f(x) |u|^{s-2 }u+h(x)|u|^{r-2}u\quad x\in \mathbb{R}^N,\cr u>0\quad x\in \mathbb{R}^N ...
Honghui Yin, Zuodong Yang
doaj  

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

Sobolev regularity solutions for a class of singular quasilinear ODEs

open access: yesAdvances in Nonlinear Analysis, 2021
This paper considers an initial-boundary value problem for a class of singular quasilinear second-order ordinary differential equations with the constraint condition stemming from fluid mechanics.
Zhao Xiaofeng, Li Hengyan, Yan Weiping
doaj   +1 more source

Resonant Problems by Quasilinearization [PDF]

open access: yesInternational Journal of Differential Equations, 2014
The Dirichlet resonant boundary value problems are considered. If the respective nonlinear equation can be reduced to a quasilinear one with a nonresonant linear part and both equations are equivalent in some domainΩand if solutions of the quasilinear problem are inΩ, then the original problem has a solution.
openaire   +4 more sources

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