Results 31 to 40 of about 979,219 (176)
Three symmetric positive solutions of fourth-order singular nonlocal boundary value problems
Electronic Journal of Qualitative Theory of Differential Equations, 2011 In this paper, we study the existence of three positive solutions of fourth-order singular nonlocal boundary value problems. We show that there exist triple symmetric positive solutions by using Leggett-Williams fixed-point theorem.
Fuyi Xu
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Eco‐Evo‐Hydraulics: Integrating Fish Evolution Into Ecohydraulics for Conservation
Water Resources Research, Volume 62, Issue 4, April 2026.Abstract Riverine fish conservation in eco‐hydraulics is often based on restoring or regulating river habitat to a semi‐natural state. For example, ecohydraulic projects support fish populations by increasing river connectivity through fishways, and by maintaining or restoring natural flow variance to enhance habitat quality and availability.
Xiatong Cai +10 more
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Positive Solutions to a Coupled Fractional Differential System with p-Laplacian Operator
Discrete Dynamics in Nature and Society, 2019 In this paper, we consider a fractional differential system with multistrip and multipoint mixed boundary conditions involving p-Laplacian operator and fractional derivatives.
Yuehan Liu, Xiaodi Zhao, Huihui Pang
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Attainability to Solve Fractional Differential Inclusion on the Half Line at Resonance
Complexity, 2020 The presented article is deduced about the positive solutions of the fractional differential inclusion at resonance on the half line. The fractional derivative used is in the sense of Riemann–Liouville and the problem is supplemented by unseparated ...
Ahmed Salem +2 more
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British Journal of Educational Psychology, Volume 96, Issue 1, Page 337-355, March 2026.Abstract Background Field‐specific ability beliefs (FABs) reflect the perception that success in academic fields depends on innate, unteachable abilities. These beliefs affect teaching practices and student motivation. However, little is known about their longitudinal development during teacher education. Aims This study examines how FABs evolve during
Katharina Asbury +2 more
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Boundary value problems of fractional q-difference equations on the half-line
Boundary Value Problems, 2019 In this paper, we consider the boundary value problem of a class of nonlinear fractional q-difference equations involving the Riemann–Liouville fractional q-derivative on the half-line.
Kuikui Ma, Xinhui Li, Shurong Sun
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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 +3 more
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Multiple periodic solutions for impulsive functional differential equations with feedback control
Electronic Journal of Differential Equations, 2011 Using the well known Leggett-Williams fixed point theorem, we study the existence of periodic solutions for a class of impulsive functional equations with feedback control. The main results are illustrated with two examples.
Peilian Guo, Yansheng Liu
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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
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Nonlinear Analysis, 2020 In this article, together with Leggett–Williams and Guo–Krasnosel’skii fixed point theorems, height functions on special bounded sets are constructed to obtain the existence of at least three positive solutions for some higher-order fractional ...
Qiuyan Zhong +4 more
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