Results 21 to 30 of about 1,625 (133)

Existence of Three Positive Solutions to Some p-Laplacian Boundary Value Problems

Discrete Dynamics in Nature and Society, 2013
We obtain, by using the Leggett-Williams fixed point theorem, sufficient conditions that ensure the existence of at least three positive solutions to some p-Laplacian boundary value problems on time scales.
Moulay Rchid Sidi Ammi, Delfim F. M. Torres   +1 more
doaj   +1 more source

Existence of Three Solutions to Integral and Discrete Equations via the Leggett Williams Fixed Point Theorem

Rocky Mountain Journal of Mathematics, 2001
Criteria are developed for the existence of three nonnegative solutions to integral and discrete equations. The strategy involves using the Leggett Williams fixed point theorem.
Agarwal, R.P., O'Regan, D.
openaire   +4 more sources

Positive Solutions for a Mixed-Order Three-Point Boundary Value Problem for p-Laplacian

Abstract and Applied Analysis, 2013
The author investigates the existence and multiplicity of positive solutions for boundary value problem of fractional differential equation with p-Laplacian operator. The main tool is fixed point index theory and Leggett-Williams fixed point theorem.
Francisco J. Torres
doaj   +1 more source

(How) Can Performance Appraisals Improve Employee Creativity? A Multidimensional Perspective

Human Resource Management, EarlyView.
ABSTRACT Performance appraisal (PA) is commonly used by organizations to manage their employees. However, the role of PAs in employee creativity remains ambiguous, with positive, negative, or even nonsignificant relationships reported in the literature. The aim of the present research is to address this ambiguity.
Xiaoya Wen, Fang Lee Cooke, Yong Zhang, Hao Qu   +3 more
wiley   +1 more source

Positive Solutions to Periodic Boundary Value Problems of Nonlinear Fractional Differential Equations at Resonance

International Journal of Differential Equations, 2016
By Leggett-Williams norm-type theorem for coincidences due to O’Regan and Zima, we discuss the existence of positive solutions to fractional order with periodic boundary conditions at resonance.
Lei Hu
doaj   +1 more source

How coworker proactive behavior drives employee bootlegging: The roles of goal orientation and self‐construal

Applied Psychology, Volume 75, Issue 1, February 2026.
Abstract Unauthorized, proactive innovative behavior (i.e., bootlegging) is increasingly recognized as an important driver of innovation. Although existing research has predominantly focused on explaining the emergence of bootlegging through formal influences (e.g., leadership and organizational practices), less attention has been paid to the impact of
Jinzhao Qu, Yan Shao, Maria Tims, Svetlana Khapova   +3 more
wiley   +1 more source

First Detection of [SI] in Near‐IR JWST Observations of Io in Eclipse, and Comparison With SO Emissions, Evolving Volcanic Eruptions, and Prior UV HST‐STIS [SI] Emissions

Journal of Geophysical Research: Planets, Volume 130, Issue 11, November 2025.
Abstract We observed Io with the James Webb Space Telescope (JWST) NIRSpec/Integral Field Unit (1.0–5.3 μm, R∼2700 $R\sim 2700$) in August 2023 while the satellite was in eclipse. Thermal emission from Kanehekili Fluctus is consistent with the cooling of lava flows after a vigorous eruption in November 2022.
Imke de Pater, Darrell F. Strobel, Ashley Gerard Davies, Joachim Saur, Lorenz Roth, Katherine de Kleer, Emmanuel Lellouch, Zachariah Milby, Carl Schmidt, Thierry Fouchet, Michael H. Wong, Leigh N. Fletcher, Jake Harkett, Michael Roman, Richard J. Cartwright, Jason E. Perry, Julie Renaud‐Kim, Carolyn Jordan, Stephan Schlegel, David A. Williams, David M. Nelson   +20 more
wiley   +1 more source

Existence of 2m-1 Positive Solutions for Sturm-Liouville Boundary Value Problems with Linear Functional Boundary Conditions on the Half-Line

Journal of Applied Mathematics, 2012
By using the Leggett-Williams fixed theorem, we establish the existence of multiple positive solutions for second-order nonhomogeneous Sturm-Liouville boundary value problems with linear functional boundary conditions.
Yanmei Sun, Zengqin Zhao
doaj   +1 more source

Triple positive solutions of BVP for second order ODE with one dimensional Laplacian on the half line

Electronic Journal of Qualitative Theory of Differential Equations, 2012
By applying Leggett-Williams fixed point theorem in a suitably constructed cone, we obtain the existence of at least three bounded positive solutions for a boundary value problem on the half line.
Yuji Liu, Patricia J. Y. Wong
doaj   +1 more source

Positive Solutions for Singular p-Laplacian Fractional Differential System with Integral Boundary Conditions

Abstract and Applied Analysis, 2014
This paper investigates the existence of positive solutions for a class of singular p-Laplacian fractional differential equations with integral boundary conditions.
Liping Wang, Zongfu Zhou, Hui Zhou
doaj   +1 more source