Results 61 to 70 of about 3,645 (122)
Le Matematiche, 2010 We consider a nonlinear elliptic Neumann problem driven by the p-Laplacian with a reaction that involves the combined effects of a “concave” and of a “convex” terms.
Dimitrie Kravvaritis +2 more
doaj
Resonance Energy Transfer and Purcell Effect in a Cu2O/Au Hybrid Optical Antenna
Advanced Photonics Research, Volume 6, Issue 10, October 2025.A Cu2O nanosphere mediates efficient (e.g., 70%) resonance energy transfer (RET) to a gold substrate. The RET damping constant derived from single‐particle scattering, ΓRET$\left(\Gamma\right)_{R E T}$, identifies interband transitions in Au. RET also occurs from an excited electron‐hole pair in Au to the Cu2O/Au hybrid resonator mode, followed by ...
Nishan Khatri +4 more
wiley +1 more source
Blow-up and superexponential growth in superlinear Volterra equations
, 2017 This paper concerns the finite-time blow-up and asymptotic behaviour of solutions to nonlinear Volterra integrodifferential equations. Our main contribution is to determine sharp estimates on the growth rates of both explosive and nonexplosive solutions ...
Appleby, John A. D., Patterson, Denis D.
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Positive and nodal solutions for nonlinear nonhomogeneous parametric Neumann problems
Electronic Journal of Differential Equations, 2020 We consider a parametric Neumann problem driven by a nonlinear nonhomogeneous differential operator plus an indefinite potential term. The reaction term is superlinear but does not satisfy the Ambrosetti-Rabinowitz condition.
Nikolaos S. Papageorgiou +2 more
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eCherry: A Modelica Library for Modular Dynamic Modelling of Electrochemical Reactors
Electrochemical Science Advances, Volume 5, Issue 5, October 2025.ABSTRACT Electrochemical reactors offer promising pathways for defossilizing the chemical industry. To understand the operation as well as to evaluate and optimise their performance and efficiency, modelling presents a crucial tool. Currently, no comprehensive open‐source library for dynamic modelling of electrochemical reactors exists, and instead ...
Jan F. Pyschik +8 more
wiley +1 more source
Studies in Applied Mathematics, Volume 155, Issue 3, September 2025.ABSTRACT We consider reaction–diffusion systems with multiplicative noise on a spatial domain of dimension two or higher. The noise process is white in time, colored in space, and invariant under translations. Inspired by previous works on the real line, we establish the multidimensional stability of planar waves on a cylindrical domain on timescales ...
M. van den Bosch, H. J. Hupkes
wiley +1 more source
Positive solutions for parametric nonlinear periodic problems with competing nonlinearities
Electronic Journal of Differential Equations, 2015 We consider a nonlinear periodic problem driven by a nonhomogeneous differential operator plus an indefinite potential and a reaction having the competing effects of concave and convex terms.
Sergiu Aizicovici +2 more
doaj
On a Dirichlet problem with $(p,q)$-Laplacian and parametric concave-convex nonlinearity
, 2018 A homogeneous Dirichlet problem with $(p,q)$-Laplace differential operator and reaction given by a parametric $p$-convex term plus a $q$-concave one is investigated.
Aizicovici +29 more
core +1 more source
Positive solutions for nonlinear Robin problems
Electronic Journal of Differential Equations, 2017 We consider a parametric Robin problem driven by the p-Laplacian with an indefinite potential and with a superlinear reaction term which does not satisfy the Ambrosetti-Rabinowitz condition. We look for positive solutions.
Diego Averna +2 more
doaj
, 2015 We prove the existence of positive periodic solutions for the second order nonlinear equation $u" + a(x) g(u) = 0$, where $g(u)$ has superlinear growth at zero and at infinity. The weight function $a(x)$ is allowed to change its sign.
Feltrin, Guglielmo, Zanolin, Fabio
core