Zobrazeno 1 - 10
of 327
pro vyhledávání: '"H. Saker"'
Publikováno v:
Journal of the Saudi Heart Association, Vol 28, Iss 3, Pp 194-195 (2016)
Smaller radial artery diameter, CSA, and perimeter is associated with higher vascular access complications during coronary angiography. The transradial approach has become the preferred vascular access during conventional coronary angiography (CCA).
Externí odkaz:
https://doaj.org/article/85f71febd0474f78b7308d3c1cc74405
Autor:
Samir H. Saker, Naglaa Mohammed, Haytham M. Rezk, Ahmed I. Saied, Khaled Aldwoah, Ayman Alahmade
Publikováno v:
Axioms, Vol 13, Iss 11, p 754 (2024)
This article contains some relations, which include some embedding and transition properties, between the Muckenhoupt classes Mγ;γ>1 and the Gehring classes Gδ;δ>1 of bi-Sobolev weights on a time scale T. In addition, we establish the relations b
Externí odkaz:
https://doaj.org/article/8c68052e70fc4fb0bec225ec36a063c4
Publikováno v:
Journal of Inequalities and Applications, Vol 2023, Iss 1, Pp 1-21 (2023)
Abstract In this paper, we will prove some fundamental properties of the power mean operator M p g ( t ) = ( 1 ϒ ( t ) ∫ 0 t λ ( s ) g p ( s ) d s ) 1 / p , for t ∈ I ⊆ R + , $$ \mathcal{M}_{p}g(t)= \biggl( \frac{1}{\Upsilon(t)} \int _{0}^{t}
Externí odkaz:
https://doaj.org/article/f0870236a1e54ed8aaa095f51004f023
Publikováno v:
Axioms, Vol 13, Iss 2, p 98 (2024)
Some fundamental properties of the Muckenhoupt class Ap of weights and the Gehring class Gq of weights on time scales and some relations between them will be proved in this paper. To prove the main results, we will apply an approach based on proving
Externí odkaz:
https://doaj.org/article/3a5154fd28594856af653f91c88302a4
On discrete weighted Hardy type inequalities and properties of weighted discrete Muckenhoupt classes
Publikováno v:
Journal of Inequalities and Applications, Vol 2021, Iss 1, Pp 1-19 (2021)
Abstract In this paper, first we prove some new refinements of discrete weighted inequalities with negative powers on finite intervals. Next, by employing these inequalities, we prove that the self-improving property (backward propagation property) o
Externí odkaz:
https://doaj.org/article/09e39b18fef94f6da20a1229bc0921df
Publikováno v:
Advances in Difference Equations, Vol 2021, Iss 1, Pp 1-20 (2021)
Abstract In this paper, we prove that the self-improving property of the weighted Gehring class G λ p $G_{\lambda }^{p}$ with a weight λ holds in the non-homogeneous spaces. The results give sharp bounds of exponents and will be used to obtain the
Externí odkaz:
https://doaj.org/article/9fe0b7aa075f44f9bfd16e0b8555afd7
Publikováno v:
Journal of Inequalities and Applications, Vol 2021, Iss 1, Pp 1-17 (2021)
Abstract In this paper, we establish some necessary and sufficient conditions for the validity of a generalized dynamic Hardy-type inequality with higher-order derivatives with two different weighted functions on time scales. The corresponding contin
Externí odkaz:
https://doaj.org/article/85b6d06e777548f09481442d2f8937d7
Publikováno v:
Advances in Difference Equations, Vol 2021, Iss 1, Pp 1-16 (2021)
Abstract In this paper, we prove some new Opial-type dynamic inequalities on time scales. Our results are obtained in frame of convexity property and by using the chain rule and Jensen and Hölder inequalities. For illustration purpose, we obtain som
Externí odkaz:
https://doaj.org/article/adf9e16bc4dc4d9dbbc6a24b1157ea2a
Publikováno v:
Advances in Difference Equations, Vol 2021, Iss 1, Pp 1-12 (2021)
Abstract In this paper, we establish some sufficient conditions which ensure that the solutions of the third order delay difference equation with a negative middle term Δ ( a n Δ ( Δ w n ) α ) − p n ( Δ w n + 1 ) α − q n h ( w n − l ) = 0
Externí odkaz:
https://doaj.org/article/5f8658ace40041e48c1afda588cb5d5f
Publikováno v:
Journal of Inequalities and Applications, Vol 2021, Iss 1, Pp 1-24 (2021)
Abstract In this paper, we establish some new characterizations of weighted functions of dynamic inequalities containing a Hardy operator on time scales. These inequalities contain the characterization of Ariňo and Muckenhoupt when T = R $\mathbb{T}
Externí odkaz:
https://doaj.org/article/550bb90e0d3542b7a8d069bdb147510d