Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Vali Soltani Masih"'
Autor:
Vali Soltani Masih
Publikováno v:
ریاضی و جامعه, Vol 8, Iss 4, Pp 81-91 (2024)
Let's denote $\mathcal{S}^{\ast}(f_c)$ as a family of analytic functions $f(z)=z+a_2z^2+a_3z^3+\cdots$ in the open unit disk $\mathbb{D}$ that satisfy the following relation for $c\in (0,1)$:$$\frac{zf'(z)}{f(z)}\prec f_c(z)=\frac{1}{\sqrt{1-cz}}, \q
Externí odkaz:
https://doaj.org/article/62d7f95c5f44435683feab4c00427e93
Autor:
Vali Soltani Masih, Stanisława Kanas
Publikováno v:
Symmetry, Vol 12, Iss 6, p 942 (2020)
Let ST L ( s ) and CV L ( s ) denote the family of analytic and normalized functions f in the unit disk D : = z : | z | < 1 , such that the quantity z f ′ ( z ) / f ( z ) or 1 + z f ″ ( z ) / f ′ ( z ) respectively are lying in the region bound
Externí odkaz:
https://doaj.org/article/80c2f26730284702b41c98c70ae80641
Publikováno v:
Tamkang Journal of Mathematics. 53
Let $\mathcal{S}^{\ast}_{L}(\lambda)$ be the class of functions $f$, analytic in the unit disc $\Delta=\{z:|z
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::491eb344a8e910c1a39fdfe223111493
https://doi.org/10.5556/j.tkjm.53.2022.3234
https://doi.org/10.5556/j.tkjm.53.2022.3234
Publikováno v:
Mathematica Slovaca. 69:1329-1340
Let 𝓐 denote the family of analytic functionsfwithf(0) =f′(0) – 1 = 0, in the open unit disk Δ. We consider a class$$\begin{array}{} \displaystyle \mathcal{S}^{\ast}_{cs}(\alpha):=\left\{f\in\mathcal{A} : \left(\frac{zf'(z)}{f(z)}-1\right)\pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9a4ed442fb92f0c52891132e311892b0
https://doi.org/10.1515/ms-2017-0311
https://doi.org/10.1515/ms-2017-0311
Publikováno v:
Journal of Inequalities and Applications, Vol 2019, Iss 1, Pp 1-14 (2019)
We consider a family of analytic and normalized functions with the property that $zf'(z)/f(z)$ z f ′ ( z ) / f ( z ) (or $1+zf''(z)/f'(z)$ 1 + z f ″ ( z ) / f ′ ( z ) ) lies in a domain bounded by a right branch of a hyperbola $\rho =\rho (s)=
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fea05b155d0e1f04892a189287d1e57c
http://link.springer.com/article/10.1186/s13660-019-2190-8
http://link.springer.com/article/10.1186/s13660-019-2190-8
Publikováno v:
Bulletin of the Iranian Mathematical Society. 46:471-486
We present a generalization of a result for p-valent functions obtained by Nunokawa and Sokol (Appl Math Comput 22(219): 10768–10776, 2013) and give a few corollaries and examples yielding some classical results on univalent functions.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::85ec9c5c04ec3142c8f3551997b3d0b9
https://doi.org/10.1007/s41980-019-00270-y
https://doi.org/10.1007/s41980-019-00270-y
Autor:
Vali Soltani Masih, Stanisława Kanas
Publikováno v:
Analysis and Mathematical Physics. 11
We find an unifying approach to the analytic representation of the domain bounded by a generalized Pascal snail. Special cases as the Pascal snail, Both leminiscate, conchoid of the Sluze and a disc are included. The behaviour of functions related to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f2b14a90ce14b25c2994204be6e4b1c1
https://doi.org/10.1007/s13324-021-00506-3
https://doi.org/10.1007/s13324-021-00506-3
We consider a family of analytic and normalized functions that are related to the domains ℍ(s), with a right branch of a hyperbolas H(s) as a boundary. The hyperbola H(s) is given by the relation 1 ρ = 2 cos φ s s ( 0 < s ≤ 1 , | φ | < (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d195d648fa9c4c35e76ee25e237ec32c
http://arxiv.org/abs/2003.12370
http://arxiv.org/abs/2003.12370
Autor:
Stanisława Kanas, Vali Soltani Masih
Publikováno v:
Symmetry, Vol 12, Iss 942, p 942 (2020)
Symmetry
Volume 12
Issue 6
Symmetry
Volume 12
Issue 6
Let ST L ( s ) and CV L ( s ) denote the family of analytic and normalized functions f in the unit disk D : = z : | z | <
1 , such that the quantity z f &prime
( z ) / f ( z ) or 1 + z f &prime
&prime
( z ) / f &prime
( z )
1 , such that the quantity z f &prime
( z ) / f ( z ) or 1 + z f &prime
&prime
( z ) / f &prime
( z )
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::480891237f9990310bcba9855bd2005b
https://doi.org/10.3390/sym12060942
https://doi.org/10.3390/sym12060942