Zobrazeno 1 - 10
of 26
pro vyhledávání: '"Gholamreza Talebi"'
Publikováno v:
Taḥqīqāt-i ̒Ulūm-i Raftārī, Vol 21, Iss 3, Pp 550-562 (2023)
Aim and Background: Breast cancer is the most common malignancy in women, and despite medical advances and the development of treatments, this disease continues to cause psychological and physical effects on the life dimensions of many affected peopl
Externí odkaz:
https://doaj.org/article/2ac7526b13e240c88bc003068a6f7f6a
Publikováno v:
Taḥqīqāt-i ̒Ulūm-i Raftārī, Vol 21, Iss 2, Pp 215-227 (2023)
Aim and Background: Cancer is a chronic disease that, despite medical advances and the development of treatments, this disease is still unique in terms of the feeling of helplessness and deep fear it creates in a person, and the psychological and phy
Externí odkaz:
https://doaj.org/article/ab7115a56348414d9544c5bf4cce0c24
Autor:
Gholamreza Talebi
Publikováno v:
Journal of Inequalities and Applications, Vol 2019, Iss 1, Pp 1-5 (2019)
Abstract Let E=(En,k)n,k≥0 $E=(E_{n,k})_{n,k\geq 0}$ be an invertible summability matrix with bounded absolute row sums and column sums, and let Ep $E_{p}$ denote the domain of E in the sequence space ℓp $\ell _{p}$ (1≤p
Externí odkaz:
https://doaj.org/article/7915a6ed8c3e4d019e75137097306e04
Autor:
Gholamreza Talebi
Publikováno v:
Journal of Inequalities and Applications, Vol 2019, Iss 1, Pp 1-7 (2019)
Abstract Let H=(hnmjk) $\mathsf{H}=(h_{nmjk})$ be a non-negative four-dimensional matrix. Denote by Lp(H) $L_{p}(\mathsf{H})$ the supremum of those ℓ satisfying the following inequality: (∑n=0∞∑m=0∞(∑j=0∞∑k=0∞hnmjkxj,k)p)1/p≥ℓ(
Externí odkaz:
https://doaj.org/article/3a211d1eaeb14ae19614e7df9bc0428b
Autor:
Gholamreza Talebi
Publikováno v:
Journal of Inequalities and Applications, Vol 2018, Iss 1, Pp 1-6 (2018)
Abstract In this paper, we obtain the Köthe–Toeplitz duals of the domain of an arbitrary invertible summability matrix E in the space ℓp $\ell_{p}$. As a consequence, we apply our results to the Fibonacci and Euler sequence spaces and show that
Externí odkaz:
https://doaj.org/article/b5fb751baaf84d0aba1c980be25dc4bc
Autor:
Gholamreza Talebi
Publikováno v:
Bulletin of the Malaysian Mathematical Sciences Society. 43:609-618
In this paper, the boundedness problem of factorizable four-dimensional matrices on the space of double sequences is investigated. As an application of our results, the lower bounds and the operator norms of four-dimensional Cesaro matrix and four-di
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aa1c5572c7c9ee9ebf7c966ebfc0e891
https://doi.org/10.1007/s40840-018-00703-7
https://doi.org/10.1007/s40840-018-00703-7
Autor:
Gholamreza Talebi
Publikováno v:
Indagationes Mathematicae. 29:601-618
Lower bounds of non-negative triangular matrices and generalized Hausdorff matrices on the Taylor sequence space are considered. Some estimates are found for their lower bounds that depend on the l 1 -norm of the columns of the Taylor matrix. Further
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5bd8130df3b024578bffd150ad34f94b
https://doi.org/10.1016/j.indag.2017.10.009
https://doi.org/10.1016/j.indag.2017.10.009
Autor:
Gholamreza Talebi
Publikováno v:
Indagationes Mathematicae. 30:741-743
The results in Section 4 of the paper “On the Taylor sequence spaces and upper boundedness of Hausdorff matrices and Norlund matrices” that appeared in this journal (28 (3) (2017), 629–636) are valid only for those summability matrices whose ab
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dbb724efdbd766a42af2af7ea7b25b6e
https://doi.org/10.1016/j.indag.2019.03.009
https://doi.org/10.1016/j.indag.2019.03.009
Autor:
Gholamreza Talebi
Publikováno v:
Indagationes Mathematicae. 28:1134-1143
Motivated by the work “Hardy’s inequality in several variables” in Salem et al. (2000), an extension of Copson’s discrete inequality to multiple series is obtained. As an application of such extension, we consider the boundedness problem of f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5a4016c109f33f9bc5447a75ab6830b4
https://doi.org/10.1016/j.indag.2017.08.004
https://doi.org/10.1016/j.indag.2017.08.004
Autor:
Gholamreza Talebi
Publikováno v:
Indagationes Mathematicae. 28:629-636
In this paper, the Taylor sequence space t p θ of non-absolute type is introduced which consists of all sequences whose Taylor transforms of order θ , ( 0 θ 1 ) , are in the space l p . It is shown that the space t p θ is a normed space which inc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::840680b718cdeea9eb14dd8fc8766eab
https://doi.org/10.1016/j.indag.2017.02.001
https://doi.org/10.1016/j.indag.2017.02.001