Results 61 to 70 of about 6,253 (237)

Coefficient Estimates for Bi-Univalent Bazilevic Functions

Analysis in Theory and Applications, 2014
In this paper we consider the class of Bazilevic functions for bi-univalent functions. For this we will estimate the coefficients $a_2$ and $a_3$ using Caratheodory functions and the method of differential subordination.
openaire   +1 more source

Copper Contact for Perovskite Solar Cells: Properties, Interfaces, and Scalable Integration

Advanced Energy and Sustainability Research, EarlyView.
Copper electrodes, as low‐cost, scalable contacts for perovskite solar cells, offer several advantages over precious metals such as Au and Ag, including performance, cost, deposition methods, and interfacial engineering. Copper (Cu) electrodes are increasingly considered practical, sustainable alternatives to noble‐metal contacts in perovskite solar ...
Shuwei Cao, Jianyong Han, Xiaohu Zhao, Yaming Yu, Peng Gao   +4 more
wiley   +1 more source

Designing Memristive Materials for Artificial Dynamic Intelligence

Advanced Intelligent Discovery, EarlyView.
Key characteristics required of memristors for realizing next‐generation computing, along with modeling approaches employed to analyze their underlying mechanisms. These modeling techniques span from the atomic scale to the array scale and cover temporal scales ranging from picoseconds to microseconds. Hardware architectures inspired by neural networks
Youngmin Kim, Ho Won Jang
wiley   +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

On a New Class of Concave Bi-Univalent Functions Associated with Bounded Boundary Rotation

Mathematics
In this research article, we introduce a new subclass of concave bi-univalent functions associated with bounded boundary rotation defined on an open unit disk. For this new class, we make an attempt to find the first two initial coefficient bounds.
Prathviraj Sharma, Srikandan Sivasubramanian, Gangadharan Murugusundaramoorthy, Nak Eun Cho   +3 more
doaj   +1 more source

Fekete–Szegö Inequality for Bi-Univalent Functions Subordinate to Horadam Polynomials

Journal of Function Spaces, 2022
Making use of Horadam polynomials, we propose a special family of regular functions of the type gz=z+∑j=2∞djzj which are bi-univalent (or bi-schlicht) in the disc z∈ℂ ...
Amnah E. Shammaky, Basem Aref Frasin, Sondekola Rudra Swamy   +2 more
doaj   +1 more source

Coefficient Bounds for Some Families of Bi-Univalent Functions with Missing Coefficients

Axioms, 2023
A branch of complex analysis with a rich history is geometric function theory, which first appeared in the early 20th century. The function theory deals with a variety of analytical tools to study the geometric features of complex-valued functions.
Ebrahim Analouei Adegani, Mostafa Jafari, Teodor Bulboacă, Paweł Zaprawa   +3 more
doaj   +1 more source

Bi-univalent Function Subclasses Subordinate to Horadam Polynomials

Earthline Journal of Mathematical Sciences, 2022
The object of this article is to explore two subclasses of regular and bi-univalent functions subordinate to Horadam polynomials in the disk $\{\varsigma\in\mathbb{C}:|\varsigma| <1\}$. We originate upper bounds for the initial Taylor-Maclaurin coefficient estimates of functions in these subclasses.
openaire   +1 more source

Horadam Polynomials Estimates for $lambda$-Pseudo-Starlike Bi-Univalent Functions

Iranian Journal of Mathematical Sciences and Informatics, 2022
Summary: In the present investigation, we use the Horadam Polynomials to establish upper bounds for the second and third coefficients of functions belongs to a new subclass of analytic and \(\lambda\)-pseudo-starlike bi-univalent functions defined in the open unit disk \(U\). Also, we discuss Fekete-Szegö problem for functions belongs to this subclass.
Hussein, Hammadi Alaa, Wanas, Abbas Kareem   +1 more
openaire   +2 more sources

Solar‐Blind Ultraviolet Photodetectors Based on Two‐Dimensional Materials and Their Heterostructures

Advanced Physics Research, EarlyView.
Solar‐blind ultraviolet photodetectors are crucial for diverse applications. This review comprehensively summarizes recent advances using two‐dimensional materials and their heterostructures, which offer tunable bandgaps, flexibility, and no lattice‐matching constraints.
Yu Lu, Junming Song, Xiarui Wu, Junpeng Lu, Zhenhua Ni, Weiwei Zhao, Fang Yang, Hongwei Liu   +7 more
wiley   +1 more source