Results 51 to 60 of about 46,114 (206)

Stability and instability of the quasilinear Gross-Pitaevskii dark solitons*** [PDF]

ESAIM: Proceedings and Surveys
We study a quasilinear Schrödinger equation with nonzero conditions at infinity. In previous works, we obtained a continuous branch of traveling waves, given by dark solitons indexed by their speed. Neglecting the quasilinear term, one recovers the Gross-
Le Quiniou Erwan
doaj   +1 more source

Symbol‐Level GRAND‐Assisted Detection for Polar‐Coded Spatial Modulation in MIMO Systems

International Journal of Communication Systems, Volume 39, Issue 7, 10 May 2026.
This research presents an integrated polar‐coded spatial modulation (PCSM) transceiver scheme for MIMO transmission over Rayleigh fading channels. The proposed architecture employs linear spatial signal processing for antenna and symbol estimation, followed by symbol‐level guessing random additive noise decoding (symbol‐level GRAND)–assisted detection ...
Abhilasha Gautam, Prabhat Thakur, Ghanshyam Singh   +2 more
wiley   +1 more source

A new critical curve for a class of quasilinear elliptic systems

, 2012
We study a class of systems of quasilinear differential inequalities associated to weakly coercive differential operators and power reaction terms. The main model cases are given by the $p$-Laplacian operator as well as the mean curvature operator in non
Bidaut-Véron, Bonfiglioli, Busca, Capogna, Caristi, Cîrstea, D’Ambrosio, D’Ambrosio, D’Ambrosio, D’Ambrosio, Farina, Farina, Filippucci, Folland, Folland, Lair, Lorenzo D’Ambrosio, Maly, Mitidieri, Mitidieri, Mitidieri, Mitidieri, Mitidieri, Phan, Polacik, Pucci, Serrin, Serrin, Souplet, Stein, Teramoto, Trudinger, Trudinger, Yang, Yarur   +34 more
core   +1 more source

Resonance and quasilinear ellipticity [PDF]

Transactions 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

Electrochemical Memristive Devices Toward Brain‐Inspired Computing and In‐Memory Communication: Mechanisms, Materials, and Device Engineering

ChemElectroChem, Volume 13, Issue 9, 5 May 2026.
Electrochemical memristive devices, whose resistance is modulated by ion migration and redox reactions, offer a hardware pathway toward brain‐inspired computing. This review summarizes key switching mechanisms—electrochemical metallization (ECM), valence change mechanism (VCM), and thermochemical effects (TCM)—and discusses how materials and device ...
Junyao Xu, Yiwei Sun
wiley   +1 more source

Bifurcation for elliptic forth-order problems with quasilinear source term

Electronic 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  

Parker Solar Probe Observations of Proton Core‐Beam Distributions in Heliospheric Current Sheet Region: Quasilinear Instability Analysis Combined With Collisional Relaxation

Journal of Geophysical Research: Space Physics, Volume 131, Issue 4, April 2026.
Abstract Parker Solar Probe has been proven as instrumental for the observation of young solar wind. During the encounters E‐07 and E‐08, PSP recorded the core plus beaming protons crossing the heliospheric current Sheet region. When the observed PSP data is plotted in the temperature ratio versus parallel beta space, it is found that the occurrence ...
M. Rashid, P. H. Yoon, J. Huang, C. Salem, M. Sarfraz, S. Alnussirat, R. A. López, J. Seough, H. Xie, D. Larson, R. Livi   +10 more
wiley   +1 more source

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

Electronic 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  

A Platinum (II) Polyyne Oligomers Donor for Efficient Ternary Organic Solar Cells

Solar RRL, Volume 10, Issue 6, 29 March 2026.
Platinum (II) polyyne oligomers P5 are used as a donor in a ternary organic solar cell. The average power conversion efficiency of 16% surpasses the international record for [Pt] (II) polyyne oligomers. PC71BM speeds up the rise time for electron transfer and slows down the recombination time.
Abdel Aziz Wayzani, Léo Boivin, Romuald Herbinet, Muriel Durandetti, Paul‐Ludovic Karsenti, Fabrice Muller, Christophe Sinturel, Loïc Le Pluart, Pierre D. Harvey, Ganesh D. Sharma, Cyprien Lemouchi   +10 more
wiley   +1 more source

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

Electronic 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