Results 31 to 40 of about 1,672 (143)

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

open access: yesAbstract 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

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

open access: yesJournal 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   +20 more
wiley   +1 more source

Boundary value problems of fractional q-difference equations on the half-line

open access: yesBoundary 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
doaj   +1 more source

Attainability to Solve Fractional Differential Inclusion on the Half Line at Resonance

open access: yesComplexity, 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
doaj   +1 more source

Positive Solutions to a Coupled Fractional Differential System with p-Laplacian Operator

open access: yesDiscrete 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
doaj   +1 more source

Multiple periodic solutions for impulsive functional differential equations with feedback control

open access: yesElectronic 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
doaj  

Multiple positive solutions for singular higher-order semipositone fractional differential equations with p-Laplacian

open access: yesNonlinear 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
doaj   +1 more source

Behavioural and physiological adaptations of a jumping spider to a marine environment

open access: yesJournal of Zoology, Volume 327, Issue 2, Page 148-158, October 2025.
We investigated aspects of Maratus marinus (Salticidae) behaviour and physiology that allow it to exploit the intertidal zone of its habitat and survive periods of submergence. In a simulated rising tide, spiders within densely constructed nests remained, continuing to respire while submerged. Spiders in flimsily built nests fled the oncoming tide, and
M. A. Leggett, J. Hill, X. J. Nelson
wiley   +1 more source

Morphological covariates of the ontogenetic shift from nauplii to copepodite prey in larval fish

open access: yesJournal of Fish Biology, Volume 107, Issue 1, Page 169-179, July 2025.
Abstract Larval fish are active planktonic predators, with many species feeding initially on copepod nauplii and gradually shifting their selection to copepodites. This study evaluated whether it is possible to develop a general widely applicable empirical model to describe the transition from feeding on copepod nauplii to copepodites in relation to ...
Pierre Pepin
wiley   +1 more source

Multiple solutions for nonresonance impulsive functional differential equations

open access: yesElectronic Journal of Differential Equations, 2003
In this paper we investigate the existence of multiple solutions for first and second order impulsive functional differential equations with boundary conditions. Our main tool is the Leggett and Williams fixed point theorem.
Mouffak Benchohra, Abdelghani Ouahab
doaj  

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