Results 61 to 70 of about 1,625 (133)

Multiple positive solutions for a coupled system of fractional multi-point BVP with p-Laplacian operator

Advances in Difference Equations, 2017
We investigate the existence of positive solutions for a system of fractional multi-point BVP with p-Laplacian operator. Our main tool is the fixed point theorem due to Leggett-Williams.
Yang Liu, Dapeng Xie, Chuanzhi Bai, Dandan Yang   +3 more
doaj   +1 more source

Author Index

Pregnancy, Volume 2, Issue S1, January 2026.
wiley   +1 more source

UEG Week 2025 Oral Presentations

United European Gastroenterology Journal, Volume 13, Issue S8, Page S7-S188, October 2025.
wiley   +1 more source

Existence of Positive Solutions for m-Point Boundary Value Problem for Nonlinear Fractional Differential Equation

Abstract and Applied Analysis, 2011
We investigate an m-point boundary value problem for nonlinear fractional differential equations. The associated Green function for the boundary value problem is given at first, and some useful properties of the Green function are obtained. By using the
Moustafa El-Shahed, Wafa M. Shammakh
doaj   +1 more source

Multiple Positive Solutions for Quadratic Integral Equations of Fractional Order

Journal of Function Spaces, 2017
In this paper, the existence of multiple positive solutions for a class of quadratic integral equation of fractional order is obtained, by utilizing Avery-Henderson and Leggett-Williams multiple fixed point theorems on cones.
Hui-Sheng Ding, Man-Man Liu, Juan J. Nieto   +2 more
doaj   +1 more source

Existence of three non-negative solutions for a three-point boundary-value problem of nonlinear fractional differential equations

Electronic Journal of Differential Equations, 2012
This article concerns the existence of three non-negative solutions for two kinds of three-point boundary-value problems of nonlinear fractional differential equations, where the fractional derivative is taken in the Riemann-Liouville sense.
Haitao Li, Xiangshan Kong, Changtian Yu
doaj  

Some Fixed Point Theorems of Leggett–Williams Type for Multivalued Mappings and Applications to Second-Order Differential Inclusions

Electronic Journal of Applied Mathematics
This paper examines the application of fixed point index theory to set-valued mappings in ordered Banach spaces, with a specific focus on Leggett-Williams type fixed point theorems. The study provides novel conditions for the existence of one and multiple fixed points under a range of assumptions.
openaire   +1 more source

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  

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

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