Results 81 to 90 of about 979,219 (176)

Multiple nonnegative solutions for second-order boundary-value problems with sign-changing nonlinearities

Electronic Journal of Differential Equations, 2009
In this paper, we study the existence of multiple nonnegative solutions for second-order boundary-value problems of differential equations with sign-changing nonlinearities.
Shouliang Xi, Mei Jia, Huipeng Ji
doaj  

Albert and Fanny Williams

, 2001
Show family with infant Albert and mother Fanny ...
Williams, Jimmy
core  

One-signed rotationally symmetric solutions of singular Dirichlet problems with the prescribed higher mean curvature operator in Minkowski spacetime

Mathematical Modelling and Analysis
We investigate the existence, uniqueness and multiplicity of one-signed rotationally symmetric solutions of singular Dirichlet problems with the prescribed higher mean curvature operator in Minkowski spacetime.
Meiyu Liu, Minghe Pei, Libo Wang
doaj   +1 more source

Triple Positive Solutions for a Type of Second-Order Singular Boundary Problems

Boundary Value Problems, 2010
This paper deals with the existence of triple positive solutions for a type of second-order singular boundary problems with general differential operators.
Li Jiemei, Wang Jinxiang
doaj  

An extension of Leggett-Williams norm-type theorem for coincidences and its application

, 2011
The author proves several modifications of the Leggett-Williams norm-type theorems for coincidences due to \textit{D. O'Regan} and \textit{M. Zima} [Arch. Math. 87, No. 3, 233--244 (2006; Zbl 1109.47051)]. Namely, the existence of positive solutions for the equation \(Mx=Nx\) is considered.
openaire   +2 more sources

Williams Family

Show family members, probably Williams family, circa ...
Williams, Jimmy
core  

Associations of Emergency Department Visits for Asthma with Precipitation and Temperature on Thunderstorm Days: A Time-Series Analysis of Data from Louisiana, USA, 2010-2012. [PDF]

Environ Health Perspect, 2022
Park JH, Lee E, Fechter-Leggett ED, Williams E, Yadav S, Bakshi A, Ebelt S, Bell JE, Strosnider H, Chew GL.   +9 more
europepmc   +1 more source

Fanny Williams

Portrait photograph of Fanny Williams in a fairground showfront ...
Williams, Jimmy
core  

A Leggett-Williams type theorem applied to a fourth order problem [PDF]

, 2012
We apply an extension of a Leggett-Williams type fixed point theorem to a two-point boundary value problem for a fourth order ordinary differential equation.
Eloe, Paul, Henderson, Johnny, Avery, Richard   +2 more
core  

Positive solutions for fractional differential equations with variable coefficients

Electronic Journal of Differential Equations, 2012
In this article, we study the existence of the positive solutions for a class of differential equations of fractional order with variable coefficients.
Yi Chen, Zhanmei Lv
doaj