Zobrazeno 1 - 6
of 6
pro vyhledávání: '"Pishtiwan Othman Sabir"'
Autor:
Hari Mohan Srivastava, Pishtiwan Othman Sabir, Sevtap Sümer Eker, Abbas Kareem Wanas, Pshtiwan Othman Mohammed, Nejmeddine Chorfi, Dumitru Baleanu
Publikováno v:
Journal of Inequalities and Applications, Vol 2024, Iss 1, Pp 1-18 (2024)
Abstract The Ruscheweyh derivative operator is used in this paper to introduce and investigate interesting general subclasses of the function class Σ m $\Sigma_{m}$ of m-fold symmetric bi-univalent analytic functions. Estimates of the initial Taylor
Externí odkaz:
https://doaj.org/article/2353b06169394b3a92b0b875627bc65e
Autor:
Pishtiwan Othman Sabir, Ravi P. Agarwal, Shabaz Jalil Mohammedfaeq, Pshtiwan Othman Mohammed, Nejmeddine Chorfi, Thabet Abdeljawad
Publikováno v:
Journal of Inequalities and Applications, Vol 2024, Iss 1, Pp 1-17 (2024)
Abstract Making use of the Hankel determinant and the Ruscheweyh derivative, in this work, we consider a general subclass of m-fold symmetric normalized biunivalent functions defined in the open unit disk. Moreover, we investigate the bounds for the
Externí odkaz:
https://doaj.org/article/8f8ae2b8ad0045e78fb16b336c7cc188
Autor:
Hari Mohan Srivastava, Pishtiwan Othman Sabir, Khalid Ibrahim Abdullah, Nafya Hameed Mohammed, Nejmeddine Chorfi, Pshtiwan Othman Mohammed
Publikováno v:
AIMS Mathematics, Vol 8, Iss 12, Pp 29975-29994 (2023)
In this article, we derive some estimates for the Taylor-Maclaurin coefficients of functions that belong to a new general subclass $ \Upsilon_\Sigma(\delta, \rho, \tau, n;\varphi) $ of bi-univalent functions in an open unit disk, which is defined by
Externí odkaz:
https://doaj.org/article/24714962a58c4a3f911d794bb39e1a69
Autor:
Pishtiwan Othman Sabir, Alina Alb Lupas, Sipal Saeed Khalil, Pshtiwan Othman Mohammed, Mohamed Abdelwahed
Publikováno v:
Symmetry, Vol 16, Iss 7, p 836 (2024)
In the present paper, we are merging two interesting and well-known classes, namely those of Bazilevič and close-to-convex functions associated with a new derivative operator. We derive coefficient estimates for this broad category of analytic, univ
Externí odkaz:
https://doaj.org/article/734e396e314d4eabbb80f38c9f587dab
Autor:
Pishtiwan Othman Sabir
Publikováno v:
Symmetry, Vol 16, Iss 5, p 595 (2024)
Starlike and convex functions have gained increased prominence in both academic literature and practical applications over the past decade. Concurrently, logarithmic coefficients play a pivotal role in estimating diverse properties within the realm o
Externí odkaz:
https://doaj.org/article/5014b2f066d6437fa0a33ad7f437ad6c
Autor:
Pishtiwan Othman Sabir, Hari Mohan Srivastava, Waggas Galib Atshan, Pshtiwan Othman Mohammed, Nejmeddine Chorfi, Miguel Vivas-Cortez
Publikováno v:
Mathematics, Vol 11, Iss 18, p 3970 (2023)
This paper presents a new general subfamily NΣmu,v(η,μ,γ,ℓ) of the family Σm that contains holomorphic normalized m-fold symmetric bi-univalent functions in the open unit disk D associated with the Ruscheweyh derivative operator. For functions
Externí odkaz:
https://doaj.org/article/7fb272b2a64747d38ffe12ebea99494b