Results 21 to 30 of about 2,424,151 (268)

Characterizations of entire solutions for the system of Fermat-type binomial and trinomial shift equations in ℂn#

open access: yesDemonstratio Mathematica, 2023
In this article, we investigate the existence and the precise form of finite-order transcendental entire solutions of some system of Fermat-type quadratic binomial and trinomial shift equations in Cn{{\mathbb{C}}}^{n}. Our results are the generalizations
Haldar Goutam, Banerjee Abhijit
doaj   +1 more source

Positive Radially Symmetric Entire Solutions of p-k-Hessian Equations and Systems

open access: yesMathematics, 2022
In this paper, we discuss the existence of positive radially symmetric entire solutions of the p-k-Hessian equation σk1kλDi|Du|p−2Dju=α1k(|x|)f(u), and the general p-k-Hessian system σk1kλDi|Du|p−2Dju=α1k(|x|)f1(v)f2(u), σk1kλDi|Dv|p−2Djv=β1k(|x|)g1(u)g2(
Wei Fan, Limei Dai, Bo Wang
doaj   +1 more source

Anisotropic entire large solutions

open access: yesComptes Rendus. Mathématique, 2011
Given q∈(0,1], we construct nonradial entire large solutions to the equation Δu=uq in RN.
openaire   +1 more source

Adaptive regularization using the entire solution surface

open access: yesBiometrika, 2009
Several sparseness penalties have been suggested for delivery of good predictive performance in automatic variable selection within the framework of regularization. All assume that the true model is sparse. We propose a penalty, a convex combination of the L1- and L∞-norms, that adapts to a variety of situations including sparseness and nonsparseness ...
S. Wu, X. Shen, C. J. Geyer
openaire   +4 more sources

Entire solutions with exponential growth for an elliptic system modeling phase-separation

open access: yes, 2013
We prove the existence of entire solutions with exponential growth for the semilinear elliptic system [\begin{cases} -\Delta u = -u v^2 & \text{in $\R^N$} -\Delta v= -u^2 v & \text{in $\R^N$} u,v>0, \end{cases}] for every $N \ge 2$.
Soave, Nicola, Zilio, Alessandro
core   +1 more source

New Insights on Keller–Osserman Conditions for Semilinear Systems

open access: yesMathematics
In this article, we consider a semilinear elliptic system involving gradient terms of the form Δyx+λ1∇yx=pxfyx,zxifx∈Ω,Δzx+λ2∇zx=qxgyxifx∈Ω, where λ1, λ2∈0,∞, Ω is either a ball of radius R>0 or the entire space RN.
Dragos-Patru Covei
doaj   +1 more source

Generalized Harnack inequality for semilinear elliptic equations

open access: yes, 2016
This paper is concerned with semilinear equations in divergence form \[ \diver(A(x)Du) = f(u) \] where $f :\R \to [0,\infty)$ is nondecreasing. We prove a sharp Harnack type inequality for nonnegative solutions which is closely connected to the classical
Julin, Vesa
core   +1 more source

Why and When Are Evidence‐Based Interventions Adopted in Paediatric Supportive Care? A Qualitative Exploration of the Determinants of Photobiomodulation Implementation

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Oral mucositis is a common and debilitating side effect of childhood cancer and stem cell transplant treatments. It affects the quality of life of children and young people (CYP) and places a strain on services. Photobiomodulation is recommended for oral mucositis prevention in international guidance but is poorly implemented in UK ...
Claudia Heggie   +4 more
wiley   +1 more source

Entire solutions of the spruce budworm model

open access: yesAdvances in Difference Equations, 2018
This paper is concerned with the entire solutions of the spruce budworm model, i.e., solutions defined for all (x,t)∈R2 $(x,t)\in \mathbb{R}^{2}$. Using the comparison argument and sub-super-solution method, three types of the entire solutions are ...
Lina Wang
doaj   +1 more source

On Entire Function Solutions to Fermat Delay-Differential Equations

open access: yesAxioms, 2022
This paper concerns the existence and precise expression form of entire solutions to a certain type of delay-differential equation. The significance of our results lie in that we generalize and supplement the related results obtained recently.
Xue-Ying Zhang, Ze-Kun Xu, Wei-Ran Lü
doaj   +1 more source

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