Results 21 to 30 of about 268 (137)

On Strongly Starlike Functions Related to the Bernoulli Lemniscate

open access: yesTamkang Journal of Mathematics, 2022
Let $\mathcal{S}^{\ast}_{L}(\lambda)$ be the class of functions $f$, analytic in the unit disc $\Delta=\{z:|z|<1\}$, with the normalization $f(0)=f'(0)-1=0$, which satisfy the condition\begin{equation*}\frac{zf'(z)}{f(z)}\prec \left(1+z\right)^{\lambda},\end{equation*}where $\prec$ is the subordination relation.
Vali Soltani Masih   +2 more
openaire   +1 more source

Chemical Approaches to Synthetic Drug Delivery Systems for Systemic Applications

open access: yesAngewandte Chemie International Edition, Volume 61, Issue 49, December 5, 2022., 2022
Over 100 years after Paul Ehrlich's vision of the “magic bullet”, the major challenges in drug delivery remain unchanged: 1) controlling pharmacokinetic and biodistribution drug distribution and clearance in the blood; 2) solubilizing hydrophobic agents, and 3) selectively targeting specific tissues. This Review describes new alternatives for synthetic
Daniel Braatz   +9 more
wiley   +1 more source

Seasonality shapes community structure and functional group dynamics of zooplankton in Changjiang River estuary and its adjacent waters

open access: yesDiversity and Distributions, Volume 28, Issue 10, Page 2152-2170, October 2022., 2022
Abstract Aim Functional trait‐based approach links the zooplankton community to the marine ecosystem functioning. It provides a comprehensive insight into the diversity of zooplankton ecological strategies but has rarely been used to characterize the zooplankton community in estuarine ecosystem.
Zeqi Zheng   +5 more
wiley   +1 more source

Criteria for Strongly Starlike Functions [PDF]

open access: yesISRN Geometry, 2011
Let f(z) be analytic in the unit disk U={z:|z|<1} with f(0)=f'(0)-1=0 and (f(z)/z)f'(z)≠0. By using the method of differential subordinations, we determine the largest number α(β,λ,μ,m) such that, for some β,λ,μ, and m, the differential subordination λzf'(z)/f(z)1-μ1+(zf''(z)/f'(z))-zf'(z)/f(z)+zf'(z)/f(z)m≺1+z/1-zα(β,λ,μ,m)(z∈U) implies zf'(z)/f(z)≺
openaire   +2 more sources

Boron‐Locked Starazine – A Soluble and Fluorescent Analogue of Starphene

open access: yesChemistry – A European Journal, Volume 28, Issue 29, May 19, 2022., 2022
The first counterpart of starphene, namely starazine, that contains a nonaaza‐core structure and three peripheral isoquinoline units locked by three tetracoordinate borons to form a quasi‐planar backbone is described. This starazine possesses a non‐aromatic and electron‐deficient core due to the introduction of the heteroatoms replacing the ...
Yi Feng   +7 more
wiley   +1 more source

Impacts of tillage and nutrient management on soil porosity trends in dryland agriculture

open access: yesEuropean Journal of Soil Science, Volume 73, Issue 1, January–February 2022., 2022
Abstract In dryland Mediterranean semi‐arid areas, the use of slurries and no‐till are encouraged to reduce costs. This paper evaluates the effect of such practices in terms of morphological changes of the topsoil porosity. The experiment had seven fertilization strategies (five of them including pig slurries applied at cereal sowing or at tillering ...
Noemí Mateo‐Marín   +3 more
wiley   +1 more source

The Third Logarithmic Coefficient for Certain Close‐to‐Convex Functions

open access: yesJournal of Mathematics, Volume 2022, Issue 1, 2022., 2022
The logarithmic coefficients γn of a normalized analytic functions f are defined by log fz/z=2∑n=1∞γnzn. For certain close‐to‐convex functions f(z) = z + a2z2 + ⋯, Cho et al. (on the third logarithmic coefficient in some subclasses of close‐to‐convex functions) has obtained the upper bound of the third logarithmic coefficient γ3 when the second ...
Najla M. Alarifi, Mohammad Alomari
wiley   +1 more source

The Coefficients of Powers of Bazilević Functions

open access: yesMathematics, 2018
In the present work, a sharp bound on the modulus of the initial coefficients for powers of strongly Bazilević functions is obtained. As an application of these results, certain conditions are investigated under which the Littlewood-Paley conjecture ...
Nak Eun Cho   +2 more
doaj   +1 more source

Some Results for Strongly Starlike Functions

open access: yesJournal of Mathematical Analysis and Applications, 1997
Let \(\alpha\), \(0\leq ...
Nunokawa, Mamoru   +4 more
openaire   +2 more sources

On the Fekete-Szegö problem

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2000
Let f(z)=z+a2z2+a3z3+⋯ be an analytic function in the open unit disk. A sharp upper bound is obtained for |a3−μa22| by using the classes of strongly starlike functions of order β and type α when μ≥1.
B. A. Frasin, Maslina Darus
doaj   +1 more source

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