Results 31 to 40 of about 26,698 (263)

On a class of fourth order linear recurrence equations

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1984
This paper is concerned with sequences that satisfy a class of fourth order linear recurrence equations. Basic properties of such sequences are derived. In addition, we discuss the oscillatory and nonoscillatory behavior of such sequences.
Sui-Sun Cheng
doaj   +1 more source

Oscillatory Solutions of Neutral Equations with Polynomial Nonlinearities [PDF]

open access: yesInternational Journal of Differential Equations, 2011
Existence uniqueness of an oscillatory solution for nonlinear neutral equations by fixed point method is proved.
Angelov, Vasil G., Angelova, Dafinka Tz.
openaire   +3 more sources

Oscillatory Solutions for Certain Delay-Differential Equations [PDF]

open access: yesProceedings of the American Mathematical Society, 1988
The existence of oscillatory solutions for a certain class of scalar first order delay-differential equations is proved. An application to a delay logistic equation arising in certain models for population variation of a single specie in a constant environment with limited resources for growth is considered.
openaire   +1 more source

On numerical solution to fractional non-linear oscillatory equations [PDF]

open access: yesMeccanica, 2012
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Merdan, Mehmet   +2 more
openaire   +2 more sources

Design and analysis strategies for robust microbiome ageing research

open access: yesFEBS Letters, EarlyView.
The gut microbiome changes with age and associates with age‐related morbidity and mortality, establishing it as a potential biomarker and intervention target for ageing. Realising this potential requires methodological rigour, yet distinguishing biological signals from methodological artefacts remains challenging across cohorts. This review provides an
Mark Olenik   +5 more
wiley   +1 more source

Approximate solutions of Korteweg-de Vries-Benjamin-Bona-Mahony-Burgers equation with dissipative terms

open access: yesJournal of Low Frequency Noise, Vibration and Active Control
In this paper, the Korteweg-de Vries-Benjamin-Bona-Mahony-Burgers (KdV-BBM-B) equation is investigated which plays an essential role in numerous subjects of engineering and science.
Chun-Yan Qin   +3 more
doaj   +1 more source

Wronskians and subspaces of certain fourth order differential equations

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1980
The objectives of the paper are to study the behavior of Wronskians of solutions of the fourth order differential equations and to relate this behavior with the oscillations of these equations, as well as to the structure of the subspaces of the solution
G. J. Etgen, Willie E. Taylor
doaj   +1 more source

Kamenev-Type Asymptotic Criterion of Fourth-Order Delay Differential Equation

open access: yesFractal and Fractional, 2020
In this paper, we obtain necessary and sufficient conditions for a Kamenev-type oscillation criterion of a fourth order differential equation of the form r 3 t r 2 t r 1 t y ′ t ′ ′ ′ + q t f y &
Omar Bazighifan
doaj   +1 more source

On oscillatory solutions to the complete Euler system [PDF]

open access: yesJournal of Differential Equations, 2020
The Euler system in fluid dynamics is a model of a compressible inviscid fluid incorporating the three basic physical principles: Conservation of mass, momentum, and energy. We show that the Cauchy problem is basically ill-posed for the $L^\infty$-initial data in the class of weak entropy solutions.
Feireisl, E. (Eduard)   +3 more
openaire   +3 more sources

Hijacking emergency granulopoiesis: Neutrophil ontogeny and reprogramming in cancer

open access: yesMolecular Oncology, EarlyView.
Neutrophils are highly plastic innate immune cells; their functions in cancer extend beyond the tumour microenvironment. This Review summarises current understanding of neutrophil maturation and heterogeneity and highlights tumour‐induced granulopoiesis as a systemic programme that expands immature, immunosuppressive neutrophils via tumour‐derived ...
Gabriela Marinescu, Yi Feng
wiley   +1 more source

Home - About - Disclaimer - Privacy