Zobrazeno 1 - 10
of 23
pro vyhledávání: '"G. E. Chatzarakis"'
Publikováno v:
Advances in Difference Equations, Vol 2020, Iss 1, Pp 1-17 (2020)
Abstract The objective in this work is to study oscillation criteria for second-order quasi-linear differential equations with an advanced argument. We establish new oscillation criteria using both the comparison technique with first-order advanced d
Externí odkaz:
https://doaj.org/article/53190f2450da4b2da85f9e9af04f2d17
Publikováno v:
Journal of Applied Mathematics, Vol 2022 (2022)
In this paper, we present a new method to establish the oscillation of advanced second-order difference equations of the form ΔηℓΔυℓ+ρℓυσℓ=0, using the ordinary difference equation ΔηℓΔυℓ+qℓυℓ+1=0. The obtained results are
Externí odkaz:
https://doaj.org/article/4710df03b27a4cf3adc2a126a85abf28
Publikováno v:
Journal of Inequalities and Applications, Vol 2019, Iss 1, Pp 1-17 (2019)
Abstract In this paper, we consider a class of quasilinear third-order differential equations with a delayed argument. We establish new sufficient conditions for all solutions of such equations to be oscillatory or almost oscillatory. Those criteria
Externí odkaz:
https://doaj.org/article/91c9c7fc39824a0982db97d6e07db7c0
Publikováno v:
Abstract and Applied Analysis, Vol 2014 (2014)
New sufficient conditions for the oscillation of all solutions of difference equations with several deviating arguments and variable coefficients are presented. Examples illustrating the results are also given.
Externí odkaz:
https://doaj.org/article/6c62713de64e4852aeb9a48c62ca1a72
Publikováno v:
Abstract and Applied Analysis, Vol 2014 (2014)
We study the oscillatory behavior of the solutions of the difference equation Δx(n)+∑i=1mpi(n)x(τi(n))=0,n∈N0[∇xn-∑i=1mpinxσin=0, n∈N] where (pi(n)), 1≤i≤m are real sequences with oscillating terms, τi(n)[σi(n)], 1≤i≤m are gene
Externí odkaz:
https://doaj.org/article/1651daf64d8448ceb96cf29e831b242b
Autor:
G. E. Chatzarakis, G. N. Miliaras
Publikováno v:
Journal of Applied Mathematics, Vol 2011 (2011)
We investigate the asymptotic behavior of the solutions of a neutral type difference equation of the form Δ[𝑥(𝑛)+𝑐𝑥(𝜏(𝑛))]+𝑝(𝑛)𝑥(𝜎(𝑛))=0, where 𝜏(𝑛) is a general retarded argument, 𝜎(𝑛) is a general devia
Externí odkaz:
https://doaj.org/article/a6f70db716b44b16a4efc53e090cd98e
Publikováno v:
Nonautonomous Dynamical Systems. 9:290-306
In this study, an epidemic mathematical model for Omicron, denoted as B.1.1.529 SARS-Cov-2 Variant, is constructed. Covid-19 vaccines are considered here to ensure the host population’s safety across the model. The fundamentals of positivity and bo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::400ea6cd0f5c82285116f272841c64a1
https://doi.org/10.1515/msds-2022-0158
https://doi.org/10.1515/msds-2022-0158
Publikováno v:
Nonautonomous Dynamical Systems. 9:56-67
The Susceptible-Isolated-Infected-Recovered-Vaccinated (SIqIRV) deterministic model is examined in this paper. This model considers a nonlinear force of quarantine, infection and care, where vaccinated individuals lose their immunity after a period o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c544173fd247635437dd085674297aea
https://doi.org/10.1515/msds-2022-0145
https://doi.org/10.1515/msds-2022-0145
Publikováno v:
Functional Differential Equations. 28:19-30
In this paper we shall consider a class of second-order nonlinear difference equations with a negative neutral term. Some new oscillation criteria are obtained via Riccati transformation technique. These criteria improve and modify the existing resu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5ccdbc7737f724d30a3750731df85978
https://doi.org/10.26351/fde/28/1-2/2
https://doi.org/10.26351/fde/28/1-2/2
Publikováno v:
Advances in Mathematics: Scientific Journal. 9:10969-10981
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::995c682ad9d5869283433b91e4774516
https://doi.org/10.37418/amsj.9.12.80
https://doi.org/10.37418/amsj.9.12.80