Results 91 to 100 of about 90,034,892 (319)
Uniform close-to-convexity radius of sections of functions in the close-to-convex family
, 2014 The authors consider the class $\F$ of normalized functions $f$ analytic in the unit disk $\ID$ and satisfying the condition $${\rm Re}\left(1+\frac{zf''(z)}{f'(z)}\right)>-\frac{1}{2},\quad z\in\D. $$ Recently, Ponnusamy et al. \cite{samy-hiroshi-swadesh} have shown that $1/6$ is the uniform sharp bound for the radius of convexity of every section ...
Bharanedhar, s. V., Ponnusamy, S.
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ON THE GENERALIZED CLASS OF CLOSE-TO-CONVEX MAPPINGS
Taiwanese Journal of Mathematics, 2015 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Xu, Qinghua, Liu, Taishun
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On α-uniformly close-to-convex and quasi-convex functions with negative coefficients
, 2020 In this paper we study a class of α-uniformly starlike functions with negative coefficients, a class of α-uniformly convex functions with negative coefficients, a class of α-uniformly close-to-convex functions with negative coefficients and a class of ...
Irina Dorca
core
Advanced Functional Materials, EarlyView.A degradable, skin‐conformal bioelectronic patch combines a starch‐dominated nanocomposite conductor with a gelatin substrate to enable sensitive strain sensing, high‐fidelity electrocardiography, electromyography, electrooculography, and machine‐learning‐assisted gesture control.
Ming Dong +10 more
wiley +1 more source
On certain subclass of close-to-convex functions
Proceedings of the Japan Academy, Series A, Mathematical Sciences, 1988 Let \(A_ n\) denote the class of regular functions such that \[ f(z)=z+\sum^{\infty}_{k=n+1}a_ kz^ k\quad (n=1,2,...)\quad (| z|
Owa, Shigeyoshi, Ma, Wancang
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Advanced Functional Materials, EarlyView.For the first time, an extreme‐thick laser‐arc PVD ta‐C (DLC) coating exceeding 100 µm is demonstrated, opening up new possibilities for ultra‐high load bearing capacity. This superhard amorphous carbon architecture combines >50% sp3 bonding, robust adhesion and self‐supporting performance, shielding substrates from plastic flow under extreme contact ...
Martin Zawischa +3 more
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Advanced Functional Materials, EarlyView.This study reports a self‐powered InGaAs nanowire photodetector achieving single‐photon‐level sensitivity in the shortwave infrared at non‐cryogenic temperatures. The device demonstrates high‐speed imaging capabilities even under extremely low‐flux conditions.
Kosala Dhanawansha +10 more
wiley +1 more source
Doubly Close-to-Convex Functions
, 2003 We introduce the class L(β,γ) of holomorphic, locally univalent functions in the unit disk D={z:|z|
Jan Szynal +2 more
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On successive coefficients of close-to-convex functions
, 1984 SynopsisA coefficient difference bound for k-fold symmetric and close-to-convex functions in the unit disc is established in this paper.
M. M. Elhosh
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Bistable Isochoric Chiral Metamaterials with Reprogrammable Multiaxial Responses
Advanced Functional Materials, EarlyView.An isochoric bistable rotational unit cell enables in situ modification of internal contact conditions post‐fabrication, without altering the global envelope dimensions of the surrounding architecture. By selectively switching between open and closed states, the tessellated chiral metamaterial can reprogram its volumetric response, including bulk ...
Shujia Chen +3 more
wiley +1 more source