Results 51 to 60 of about 8,043,575 (337)

Oscillation properties for non-classical Sturm-Liouville problems with additional transmission conditions

open access: yesMathematical Modelling and Analysis, 2021
This work is aimed at studying some comparison and oscillation properties of boundary value problems (BVP’s) of a new type, which differ from classical problems in that they are defined on two disjoint intervals and include additional transfer conditions
Oktay Sh. Mukhtarov, Kadriye Aydemir
doaj   +1 more source

Existence of nonoscillatory and oscillatory solutions of neutral differential equations with positive and negative coefficients [PDF]

open access: yes, 1999
summary:In this paper, we study the existence of oscillatory and nonoscillatory solutions of neutral differential equations of the form \(x(t)-cx(t-r)\)'\pm\(P(t)x(t-\theta)-Q(t)x(t-\delta)\)=0 where $c>0$, $r>0$, $\theta>\delta\geq0$ are constants, and $
Graef, John R., Yang, Bo, Zhang, B. G.
core   +1 more source

Hopf bifurcation in a gene regulatory network model : molecular movement causes oscillations [PDF]

open access: yes, 2014
M.A.J.C. and M.S. gratefully acknowledge the support of the ERC Advanced Investigator Grant 227619, “M5CGS — From Mutations to Metastases: Multiscale Mathematical Modelling of Cancer Growth and Spread”. M.S.
Ptashnyk, Mariya   +10 more
core   +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

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 behavior of solutions of Volterra summation equations

open access: yesApplied Mathematics Letters, 1999
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Graef, J.R., Thandapani, E.
openaire   +2 more sources

Qualitative Behavior of the Solutions to Delay and Difference Equations

open access: yesВестник КазНУ. Серия математика, механика, информатика, 2018
It is noteworthy to observe that a first-order linear ordinary differential equation without delay does not possess oscillatory solutions. Therefore the investigation of oscillatory solutions is of interest for equations with delays or for the discrete
P. Ioannis
doaj   +1 more source

Nonrectifiable oscillatory solutions of second order linear differential equations [PDF]

open access: yes, 2017
summary:The second order linear differential equation \begin{equation*} (p(x)y^{\prime })^{\prime }+q(x)y=0\,, \quad x \in (0,x_0] \end{equation*} is considered, where $p$, $q \in C^1(0,x_0]$, $p(x)>0$, $q(x)>0$ for $x \in (0,x_0]$. Sufficient conditions
Kanemitsu, Takanao   +3 more
core   +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

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