Results 41 to 50 of about 1,672 (143)
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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Microbial Biotechnology, Volume 18, Issue 6, June 2025.High‐traffic areas, such as mass transportation environments, can have a significant impact on infection transmission, and chemical disinfection may favour the selection of drug‐resistant microbes. Probiotic‐based approaches have the potential to be a novel and ecologically sustainable option for controlling bioburden and preventing infections ...
Irene Soffritti +7 more
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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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British Journal of Educational Psychology, Volume 95, Issue 2, Page 603-626, June 2025.Abstract Background The achievement goals set by parents and teachers play a crucial role in shaping students' personal goal orientation and academic performance. Previous studies have revealed discrepancies between achievement goals set by parents and teachers.
Ningning Zhao +6 more
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Electronic Journal of Differential Equations, 2011 In this work, we use the Leggett-Williams fixed point theorem to prove the existence of at least three positive solutions to a system of third-order ordinary differential equations with (p,q ...
Nemat Nyamoradi
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Discrete Dynamics in Nature and Society, 2018 This paper is concerned with the existence and multiplicity of the positive solutions for a fractional boundary value problem with multistrip Riemann–Stieltjes integral boundary conditions.
Tongling Lv, Huihui Pang, Limei Cao
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Closing the air gap: the use of drones for studying wildlife ecophysiology
Biological Reviews, Volume 100, Issue 3, Page 1206-1228, June 2025.ABSTRACT Techniques for non‐invasive sampling of ecophysiological data in wild animals have been developed in response to challenges associated with studying captive animals or using invasive methods. Of these, drones, also known as Unoccupied Aerial Vehicles (UAVs), and their associated sensors, have emerged as a promising tool in the ecophysiology ...
Adam Yaney‐Keller +3 more
wiley +1 more source
Existence of a positive solution to a right focal boundary value problem
Electronic Journal of Qualitative Theory of Differential Equations, 2010 In this paper we apply the recent extension of the Leggett-Williams Fixed Point Theorem which requires neither of the functional boundaries to be invariant to the second order right focal boundary value problem.
Richard Avery +2 more
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Aquaculture and early life stages of the Hawaiian Potter's angelfish (Centropyge potteri)
Journal of the World Aquaculture Society, Volume 56, Issue 3, June 2025.Abstract The Potter's angelfish (Centropyge potteri), a Hawaiian endemic reef fish, has long been prized in the global aquarium trade, with approximately 9000 individuals collected annually from the wild before Hawai‘i's 2021 ban on commercial aquarium fish collection.
Kent A. Glover, Chatham K. Callan
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Electronic Journal of Differential Equations, 2011 In this work, we use the Leggett-Williams fixed point theorem, we prove the existence of at least three positive solutions of a boundary-value problem for system of third-order ordinary differential equations.
Nemat Nyamoradi
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