Results 31 to 40 of about 147,119 (311)

Boundary layer chemical vapor synthesis of self-organized radial filled-carbon-nanotube structures [PDF]

open access: yes, 2013
We report a new chemical vapor synthesis method that exploits random fluctuations in the viscous boundary layer between a laminar vapor flow and a surface to yield a not previously observed product: radial ferromagnetically filled-carbon-nanotube ...
Baxendale, M.   +5 more
core   +1 more source

Boundedness of Solutions for an Attraction–Repulsion Model with Indirect Signal Production

open access: yesMathematics
In this paper, we consider the following two-dimensional chemotaxis system of attraction–repulsion with indirect signal production 𝜕tu=Δu−∇·χ1u∇v1+∇·(χ2u∇v2),x∈R2,t>0,0=Δvj−λjvj+w,x∈R2,t>0,(j=1,2),𝜕tw+δw=u,x∈R2,t>0,u(0,x)=u0(x),w(0,x)=w0(x),x∈R2, where ...
Jie Wu, Yujie Huang
doaj   +1 more source

On radial solutions for Monge–Ampère equations

open access: yesTURKISH JOURNAL OF MATHEMATICS, 2018
Summary: In this paper, we obtain some new existence, uniqueness, and multiplicity results of radial solutions of an elliptic system coupled by Monge-Ampère equations using the fixed point theorem.
Ronghua LIU, Fanglei WANG, Yukun AN
openaire   +2 more sources

The Effects of Nonlinear Noise on the Fractional Schrödinger Equation

open access: yesFractal and Fractional, 2023
The aim of this work is to investigate the influence of nonlinear multiplicative noise on the Cauchy problem of the nonlinear fractional Schrödinger equation in the non-radial case.
Jin Xie, Han Yang, Dingshi Li, Sen Ming
doaj   +1 more source

Existencia de Soluciones Radiales para Problemas Semilineales Elípticos Indefinidos

open access: yesSelecciones Matemáticas, 2020
We study the existence of radial solutions of indefinite semilinear elliptic equations in the unit ball in Rn (n>=3) with Dirichlet boundary conditions, whose nonlinear term has the form lamda.m(|x|)f(u) where m(|.|) is radially symmetric, discontinuous ...
Marco Calahorrano, Israel Cevallos
doaj   +1 more source

On kernel engineering via Paley–Wiener [PDF]

open access: yes, 2010
A radial basis function approximation takes the form $$s(x)=\sum_{k=1}^na_k\phi(x-b_k),\quad x\in {\mathbb{R}}^d,$$ where the coefficients a 1,…,a n are real numbers, the centres b 1,…,b n are distinct points in ℝ d , and the function φ:ℝ d →ℝ is ...
Baxter, Brad J.C., B. J. C. Baxter
core   +1 more source

Classification of radial solutions to Liouville systems with singularities

open access: yesDiscrete and Continuous Dynamical Systems, 2014
25 ...
Lin, Chang-Shou, Zhang, Lei
openaire   +2 more sources

Radial symmetric solutions of the Cahn-Hilliard equation with degenerate mobility

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2001
In this paper we study the radial symmetric solutions of the two-dimensional Cahn-Hilliard equation with degenerate mobility. We adopt the method of parabolic regularization.
Jingxue Yin, Changchun Liu
doaj   +1 more source

Radial functions and maximal estimates for radial solutions to the Schrodinger equation

open access: yesTsukuba Journal of Mathematics, 1998
The author establishes the following estimate for radial functions \(f\): If \(2\leq q\leq 8/3\), \(\alpha= q(2n-1)/4-n\), then \[ \Biggl(\int_{\mathbb{R}^n}| S^*f(x)|^q| x|^\alpha dx\Biggr)^{1/q}\leq C\| f\|_{H_{1/4}}, \] where the maximal functions \(S^*f\) is defined by \[ S^*f(x)= \sup_ ...
openaire   +3 more sources

A note on the radial solutions for the supercritical Hénon equation

open access: yesJournal of Mathematical Analysis and Applications, 2008
We prove the existence of a positive radial solution for the Hénon equation with arbitrary growth. The solution is found by means of a shooting method and turns out to be an increasing function of the radial variable. Some numerical experiments suggest the existence of many positive oscillating solutions.
BARUTELLO V, SECCHI S, SERRA, Enrico
openaire   +5 more sources

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