Zobrazeno 1 - 10
of 578
pro vyhledávání: '"Graef, John R."'
Publikováno v:
Acta Universitatis Sapientiae: Mathematica, Vol 15, Iss 2, Pp 259-271 (2023)
This paper discusses the oscillatory behavior of solutions to a class of second-order nonlinear noncanonical neutral differential equations. Sufficient conditions for all solutions to be oscillatory are given. Examples are provided to illustrate all
Externí odkaz:
https://doaj.org/article/5e10d07af84f495499b4b9b1d812143d
Publikováno v:
Applicable Analysis and Discrete Mathematics, 2022 Oct 01. 16(2), 350-364.
Externí odkaz:
https://www.jstor.org/stable/27174763
Autor:
Graef, John R.1 (AUTHOR) john-graef@utc.edu, Maazouz, Kadda2 (AUTHOR) kadda.maazouz@univ-tiaret.dz, Zaak, Moussa Daif Allah2 (AUTHOR) moussadaifallah.zaak@univ-tiaret.dz
Publikováno v:
Axioms (2075-1680). Apr2024, Vol. 13 Issue 4, p277. 11p.
Publikováno v:
Nonautonomous Dynamical Systems, Vol 10, Iss 1, Pp 340-346 (2023)
In this study, an initial-value problem for a nonlinear Volterra functional integro-differential equation on a finite interval was considered. The nonlinear term in the equation contains multiple time delays. In addition to giving some new theorems o
Externí odkaz:
https://doaj.org/article/94130aee137f412484b7e045d6a829fe
Autor:
Slimani, Bachir1 (AUTHOR) bachir.slimani@univ-sba.dz, Graef, John R.2 (AUTHOR) john-graef@utc.edu, Ouahab, Abdelghani1 (AUTHOR) ouahab@univ-sba.dz
Publikováno v:
Mathematics (2227-7390). Feb2024, Vol. 12 Issue 4, p567. 11p.
Akademický článek
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We prove new results on the existence of positive radial solutions of the elliptic equation $-\Delta u= \lambda h(|x|,u)$ in an annular domain in $\mathbb{R}^{N}, N\geq 2$. Existence of positive radial solutions are determined under the conditions th
Externí odkaz:
http://arxiv.org/abs/1807.02956
Publikováno v:
Nonautonomous Dynamical Systems, Vol 9, Iss 1, Pp 163-169 (2022)
The aim of this paper is to investigate the second order half-linear retarded difference equation Δ(μ(n)(Δη(n))α)+δ(n)ηα(σ(n))=0\Delta \left( {\mu \left( n \right){{\left( {\Delta \eta \left( n \right)} \right)}^\alpha }} \right) + \delta \l
Externí odkaz:
https://doaj.org/article/b590083fbeec4377a24849532fd7414a