Results 41 to 50 of about 1,012,253 (172)
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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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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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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Leggett-Garg tests of macrorealism for dynamical cat states evolving in a nonlinear medium
, 2019 We show violations of Leggett-Garg inequalities to be possible for single-mode cat states evolving dynamically in the presence of a nonlinear quantum interaction arising from, for instance, a Kerr medium.
Manushan Thenabadu (18922765) +1 more
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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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Positive Solutions of Fractional Differential Equations with p-Laplacian
Journal of Function Spaces, 2017 The multiplicity of positive solution for a new class of four-point boundary value problem of fractional differential equations with p-Laplacian operator is investigated. By the use of the Leggett-Williams fixed-point theorem, the multiplicity results of
Yuansheng Tian, Sujing Sun, Zhanbing Bai
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Electronic Journal of Differential Equations, 2010 Using the Leggett-Williams multiple fixed point theorem, we establish criteria for the existence of three positive periodic solutions of a class of differential systems with feedback controls on time scales.
Yongkun Li, Tianwei Zhang, Jianfeng Suo
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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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Journal of Applied Mathematics, Volume 2026, Issue 1, 2026.Fractional differential equations (FDEs) are of great significance for describing complex physical processes with memory and genetic characteristics. The introduction of the p‐Laplacian operator can expand its applicability in nonlinear problems. To explore the uniqueness multiplicity, and variety of solutions to p‐Laplacian differential equations with
Haiyan Li, Yuhua Xu
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