Results 61 to 70 of about 1,965,065 (298)

Attractivity for neutral functional differential equations

open access: yesDiscrete and Continuous Dynamical Systems - B, 2013
We study the long term dynamics of non-autonomous functional di fferential equations. Namely, we establish existence results on pullback attractors for non-linear neutral functional di erential equations with time varying delays. The two main results di er in smoothness properties of delay functions.
Caraballo Garrido, Tomás, Kiss, Gábor
openaire   +3 more sources

On a Quasi‐Neutral Approximation to the Incompressible Euler Equations [PDF]

open access: yesJournal of Applied Mathematics, 2012
We rigorously justify a singular Euler‐Poisson approximation of the incompressible Euler equations in the quasi‐neutral regime for plasma physics. Using the modulated energy estimates, the rate convergence of Euler‐Poisson systems to the incompressible Euler equations is obtained.
Jianwei Yang, Zhitao Zhuang
openaire   +4 more sources

Neutral Differential Equations of Higher-Order in Canonical Form: Oscillation Criteria

open access: yes, 2023
This paper aims to study a class of neutral differential equations of higher-order in canonical form. By using the comparison technique, we obtain sufficient conditions to ensure that the studied differential equations are oscillatory.
Abdulaziz Khalid Alsharidi   +2 more
core   +1 more source

Extracellular vesicle lipidomics liquid biopsy reveals systemic and tumor microenvironment metabolic reprogramming in ovarian cancer

open access: yesMolecular Oncology, EarlyView.
Extracellular vesicle (EV) lipidomic profiling of plasma and ascites from patients with high‐grade serous ovarian cancer and of ovarian cancer cell lines reveals enrichment of triglycerides (TGs), diacylglycerols (DGs), phosphatidylcholine (PCs), sphingomyelins (SMs), reflecting tumor metabolic reprogramming.
Shikha Rani   +9 more
wiley   +1 more source

General Solution of Linear Fractional Neutral Differential Difference Equations

open access: yesDiscrete Dynamics in Nature and Society, 2013
This paper is concerned with the general solution of linear fractional neutral differential difference equations. The exponential estimates of the solution and the variation of constant formula for linear fractional neutral differential difference ...
Hai Zhang, Jinde Cao, Wei Jiang
doaj   +1 more source

On multiplicity of solutions to nonlinear partial difference equations with delay

open access: yesAdvances in Difference Equations, 2018
In this paper, we present an existence criterion for multiple positive solutions of nonlinear neutral delay partial difference equations. Such equations can be regarded as a discrete analog of neutral delay partial differential equations. Our main result
Yong Zhou   +3 more
doaj   +1 more source

Some New Existence Results for Positive Periodic Solutions to First-Order Neutral Differential Equations with Variable Coefficients

open access: yes, 2022
In this article, we deal with some new existence results for positive periodic solutions for a class of neutral functional differential equations by employing Krasnoselskii’s fixed-point theorem and the properties of a neutral operator. Our results
Lingping Zhang, Bo Du
core   +1 more source

Extracellular matrix remodeling and immune reprogramming drive residual tumor progression of liver cancer after incomplete microwave ablation

open access: yesMolecular Oncology, EarlyView.
Incomplete microwave ablation (iMWA) of liver cancer triggers a biphasic progression in residual tumors. At Day 3, the microenvironment is characterized by acute inflammatory responses and extracellular matrix (ECM) remodeling. By Day 14, a profound shift occurs toward oncogenic signal transduction and immunosuppression, marked by macrophage ...
Yu Liu   +9 more
wiley   +1 more source

A Massera type criterion for a partial neutral functional differential equation

open access: yesElectronic Journal of Differential Equations, 2002
We prove the existence of periodic solutions for partial neutral functional differential equations with delay, using a Massera type criterion.
Eduardo Hernandez M.
doaj  

Oscillation and Nonoscillation for Neutral Differential Equations

open access: yesJournal of Mathematical Analysis and Applications, 1993
A class of neutral differential equations is investigated. The existence of nonoscillatory positive solutions is proved. Sufficient conditions for the existence of oscillatory solutions of this problem are given.
Zhang, B.G., Yu, J.S.
openaire   +2 more sources

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