Results 71 to 80 of about 2,065 (197)

Estimate for initial MacLaurin coefficients of certain subclasses of bi-univalent functions of complex order associated with the Hohlov operator

Annales Universitatis Paedagogicae Cracoviensis: Studia Mathematica, 2018
In this paper, we define a new subclass of bi-univalent functions involving a Hohlov operator in the open unit disk. For functions belonging to this class, we obtain estimates on the first two Taylor-Maclaurin coefficients |a2| and | a3|.
Gangadharan Murugusundaramoorthy, Teodor Bulboaca   +1 more
doaj   +1 more source

Mono‐ and Bivalent Poly(iso‐butylene)‐Alanines for Drug‐Delivery of Nimodipine and Triamcinolone Acetonide

Macromolecular Rapid Communications, EarlyView.
Mono‐ and bivalent‐, alanine‐modified poly‐iso‐butylenes, folding into beta‐sheets, were prepared by living carbocationic polymerization and subsequent endgroup modification. These PIB‐conjugates are useful as solid polymers for the drug release of triamcinolone and nimodipine. ABSTRACT Poly‐iso‐butylene (PIB) is a well known biocompatible polymer with
Philipp S. Hilgeroth, Julius F. Butter, Wolfgang H. Binder   +2 more
wiley   +1 more source

Coefficient Estimates for New Subclasses of Analytic and Bi-Univalent Functions Defined by Al-Oboudi Differential Operator

Journal of Function Spaces and Applications, 2013
We introduce and investigate two new subclasses and of analytic and bi-univalent functions in the open unit disk For functions belonging to these classes, we obtain estimates on the first two Taylor-Maclaurin coefficients ...
Serap Bulut
doaj   +1 more source

Advanced design and application for viologen‐based redox devices with customizable functionalities

Responsive Materials, EarlyView.
This review examines viologen‐based materials with customizable functionalities achieved through molecular engineering strategies such as side‐chain modification and composite formation. It emphasizes their utility in electrochromic devices, multicolor displays, and energy storage, while discussing stability challenges and outlining future development ...
Yuxin Chang, Yuchen Ge, Luzi Wang, Jinqian Mao, Zhongzhi Qu, Na Li, Dongqi Liu, Jiupeng Zhao   +7 more
wiley   +1 more source

Coefficient Estimates for Generalized Analytic Bi-Univalent Functions [PDF]

Academic Journal of Applied Mathematical Sciences, 2019
For the normalized analytic functions of the form..... .We obtain the initial coefficient estimates for the subclassThe relationship with some coefficient estimates in the literature with that of the subclass above was also considered.
openaire   +1 more source

Initial Coefficient Estimates for Bi-Univalent Functions Related to Generalized Telephone Numbers

Journal of Mathematics
This study defines three novel classes of bi-univalent functions connected to generalized telephone numbers for the first time. We produced assessments about the Taylor–Maclaurin coefficients a2 and a3 and Fekete–Szegö functional problems for functions ...
Gangadharan Murugusundaramoorthy, Kaliappan Vijaya, Sunil Dutt Purohit, null Shyamsunder, Daya Lal Suthar   +4 more
doaj   +1 more source

Second Hankel determinant for a certain function class of bi-univalent functions associated with Salagean derivative operator

European Journal of Mathematics and Applications, 2023
In this work, we investigate the bounds on the fourth initial coefficient $|a_4|$ and the second Hankel determinant $|a_2a_4 - a^ 2_3|$ for a class of analytic and bi-univalent functions defined in the open unit disk.
Ezekiel Abiodun Oyekan, Ayotunde Olajide Lasode, Oluwasegun Adeshina Olukoya, Peter Oluwafemi Adepoju   +3 more
doaj  

Bi-Bazilevič functions of complex order involving Ruscheweyh type q-difference operator

Annales Universitatis Paedagogicae Cracoviensis: Studia Mathematica, 2018
In this paper, we define a new subclass of bi-univalent functions involving q-difference operator in the open unit disk. For functions belonging to this class, we obtain estimates on the first two Taylor-Maclaurin coefficients |a2| and |a3|.
Gangadharan Murugusundaramoorthy, Serap Bulut   +1 more
doaj   +1 more source

Second Hankel Determinant for Strongly Bi-Starlike of order α [PDF]

, 2018
Let A denote the class of functions f (z) = z + ∞ n=2 anz n which are analytic in the open unit disc U = {z : |z| < 1}. Let S denote the class of all functions in A that are univalent in U.
Aini Janteng, Chow Li Yong, Suzeini Abd. Halim   +2 more
core   +1 more source

Acid Resistant and Highly Silver Selective Membranes Based on Charged Nanoporous 2D‐Materials

Small, EarlyView.
In this work, new membranes based on charged & nanoporous nanosheets with unprecedented selectivity to silver versus a wide range of other metallic ions are reported. Furthermore, a demonstrated and lead specific intralamellar lead pathway is demonstrated. A potential applicability for ubiquitous silver in WEEE is validated.
Sarah M. Chevrier, Thibault Rosier, Bo Han, Lina Cherni, Fabien L. Olivier, Hélène Isnard, Jean‐Christophe P. Gabriel   +6 more
wiley   +1 more source