Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Bassant M. El-Matary"'
Publikováno v:
AIMS Mathematics, Vol 9, Iss 10, Pp 29425-29438 (2024)
We study the Kneser-type oscillation criterion for a class of second-order half-linear functional dynamic equations on an arbitrary time scale utilizing the integral averaging approach and the Riccati transformation method. The results show an improv
Externí odkaz:
https://doaj.org/article/fa8f7dbd75034091be168f2f8f90eb45
Publikováno v:
AIMS Mathematics, Vol 9, Iss 8, Pp 23128-23141 (2024)
Using comparison principles, we examine the asymptotic characteristics of a third-order nonlinear damped neutral differential equation. Our results substantially generalize numerous previously established results as well as drastically improving them
Externí odkaz:
https://doaj.org/article/78abd3c463e84400bb56256082172b66
Autor:
Taher S. Hassan, Mnaouer Kachout, Bassant M. El-Matary, Loredana Florentina Iambor, Ismoil Odinaev, Akbar Ali
Publikováno v:
Mathematics, Vol 12, Iss 23, p 3740 (2024)
In this paper, we examine the oscillatory behavior of solutions to a class of half-linear third-order dynamic equations with deviating arguments α2(η)ϕδ2α1ηϕδ1uΔ(η)ΔΔ+p(η)ϕδu(g(η))=0, on an arbitrary unbounded-above time scale T, wher
Externí odkaz:
https://doaj.org/article/e218832aee194b8d9da1393761c3ef36
Autor:
Emad R. Attia, Bassant M. El-Matary
Publikováno v:
Journal of Inequalities and Applications, Vol 2023, Iss 1, Pp 1-12 (2023)
Abstract The distance between consecutive zeros of a first-order differential equation with several variable delays is studied. Here, we show that the distribution of zeros of differential equations with variable delays is not an easy extension of th
Externí odkaz:
https://doaj.org/article/da60be8d6e434aa992009f2d02f4971e
Publikováno v:
Opuscula Mathematica, Vol 43, Iss 6, Pp 789-801 (2023)
A technique is developed to establish a new oscillation criterion for a first-order linear difference equation with several delays and non-negative coefficients. Our result improves recent oscillation criteria and covers the cases of monotone and non
Externí odkaz:
https://doaj.org/article/b2b40204feab4463b0c19e658373bfd1
Publikováno v:
Opuscula Mathematica, Vol 42, Iss 6, Pp 769-791 (2022)
In this paper, we study the oscillatory behavior of the solutions of a first-order difference equation with non-monotone retarded argument and nonnegative coefficients, based on an iterative procedure. We establish some oscillation criteria, involvin
Externí odkaz:
https://doaj.org/article/2bb054450ed84f65b450c278d4c6c0b8
Autor:
Emad R. Attia, Bassant M. El-Matary
Publikováno v:
Opuscula Mathematica, Vol 42, Iss 3, Pp 393-413 (2022)
We study the oscillation of first-order linear difference equations with non-monotone deviating arguments. Iterative oscillation criteria are obtained which essentially improve, extend, and simplify some known conditions. These results will be applie
Externí odkaz:
https://doaj.org/article/53c9190e5a62471b9e65ea3b765e16da
Publikováno v:
Mathematics, Vol 11, Iss 6, p 1385 (2023)
In this paper, we find new oscillation criteria for second-order advanced functional half-linear differential equations. Our results extend and improve recent criteria for the same equations established previously by several authors and cover the exi
Externí odkaz:
https://doaj.org/article/5b09ef3fa3f945f8b5bf30777a9e22d9
Autor:
Taher S. Hassan, Bassant M. El-Matary
Publikováno v:
Mathematics, Vol 11, Iss 2, p 424 (2023)
In this paper, we investigate the asymptotic properties of third-order nonlinear neutral differential equations with mixed nonlinearities using the comparison principle. Our results not only vastly improve upon but also broadly generalize many previo
Externí odkaz:
https://doaj.org/article/b6d04609d7b04057b054514d07afeb3b
Publikováno v:
Mathematics, Vol 8, Iss 3, p 418 (2020)
In this paper we introduce a new subclass of the bi-univalent functions defined in the open unit disc and connected with a q-analogue derivative. We find estimates for the first two Taylor-Maclaurin coefficients a 2 and a 3 for functions in this subc
Externí odkaz:
https://doaj.org/article/116f9d50e490481398be915b3508b30e