Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Tuğba Akyel"'
Autor:
Tuğba Akyel
Publikováno v:
Filomat. 35:3713-3720
The aim of this study is to solve the Fekete-Szeg? problem and to define upper bound for Hankel determinant H2(1) in a novel class K of analytical functions in the unit disc. Moreover, in a class of analytic functions on the unit disc, assuming the e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2c2835f3a43d8426ccd6ca939e6d83dd
https://doi.org/10.2298/fil2111713a
https://doi.org/10.2298/fil2111713a
Autor:
Tuğba Akyel, Bülent Nafi Örnek
Publikováno v:
Boletim da Sociedade Paranaense de Matemática. 38:219-226
In this paper, a boundary version of the Schwarz lemma for the class $\mathcal{% N(\alpha )}$ is investigated. For the function $f(z)=\frac{1}{z}% +a_{0}+a_{1}z+a_{2}z^{2}+...$ defined in the punctured disc $E$ such that $% f(z)\in \mathcal{N(\alpha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fa8fcf7b2137b7f1bde3d04e3e7d0cb0
https://doi.org/10.5269/bspm.v38i7.46633
https://doi.org/10.5269/bspm.v38i7.46633
Autor:
Tuğba Akyel, Bülent Nafi Örnek
Publikováno v:
Volume: 23, Issue: 3 446-452
Sakarya University Journal of Science
Sakarya University Journal of Science
We consider a boundary version of the Schwarz Lemma on a certain class which isdenoted by K(alfa) . For the function f(z)=z+c2z2+....... which is defined in the unit disc Esuch that the function f (z) belongs to the class K(alfa) , we estimate from b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::73b45370bfed9743ea7c410d50cb17eb
https://doi.org/10.16984/saufenbilder.464294
https://doi.org/10.16984/saufenbilder.464294
Autor:
Tuğba Akyel, Bülent Nafi Örnek
Publikováno v:
FOURTH INTERNATIONAL CONFERENCE OF MATHEMATICAL SCIENCES (ICMS 2020).
We present a different version of Schwarz Lemma and estimate the angular derivative of the function z f (z) f(z) from below for λ−spirallike function f(z) of complex order at the boundary of the unit disc D by taking into account of the zeros of t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::16cf489229fd4a1cb745215c8aa1c664
https://doi.org/10.1063/5.0042260
https://doi.org/10.1063/5.0042260
Autor:
Bülent Nafi Örnek, Tuğba Akyel
Publikováno v:
Filomat. 31:4139-4151
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::89c3fabfccd8aace33204d080a1893cd
https://doi.org/10.2298/fil1713139a
https://doi.org/10.2298/fil1713139a
Autor:
Tuğba Akyel, Bülent Nafi Örnek
Publikováno v:
Publications de l'Institut Math?matique (Belgrade). 101:191-196
Let f be a holomorphic function in the unit disc and |f(z)?1| < 1 for |z| < 1. We generalize the uniqueness portion of Schwarz?s lemma and provide sufficient conditions on the local behavior of f near a finite set of boundary points that needed for f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7f69b51f5faafdd7bcf92d60c651dda5
https://doi.org/10.2298/pim1715191o
https://doi.org/10.2298/pim1715191o
Autor:
Tuğba Akyel, Bülent Nafi Örnek
Publikováno v:
Filomat. 31:3643-3650
In this paper, a boundary version of the uniqueness (or, rigidity) part of the Schwarz lemma should be investigated. Also, new results related to inner functions, inner capacities, and bilogaritmic concave majorants are obtained.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::57012ccbe6adff2e5fedecc017d8d5bd
https://doi.org/10.2298/fil1712643o
https://doi.org/10.2298/fil1712643o
Autor:
Tuğba Akyel, Bülent Nafi Örnek
Publikováno v:
Proceedings - Mathematical Sciences. 126:69-78
In this paper, a boundary version of the Schwarz inequality is investigated. We obtain more general results at the boundary. If we know the second coefficient in the expansion of the function f(z) = 1 + cpzp + cp + 1zp + 1…, then we obtain new ineq
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4b1f05ab076eafb5be49359bd3a4003a
https://doi.org/10.1007/s12044-015-0255-2
https://doi.org/10.1007/s12044-015-0255-2
Autor:
Bülent Nafi Örnek, Tuğba Akyel
Publikováno v:
THIRD INTERNATIONAL CONFERENCE OF MATHEMATICAL SCIENCES (ICMS 2019).
We consider the rigidity part of Schwarz Lemma. Let f be a holomorphic function in the unit disc D and |ℜf(z)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::40bcda4023ab5a9f49e1b91c4453f110
https://doi.org/10.1063/1.5136123
https://doi.org/10.1063/1.5136123
Autor:
Tuğba Akyel, Bülent Nafi Örnek
Publikováno v:
The Pure and Applied Mathematics. 22:263-273
In this paper, a boundary version of Schwarz lemma is investigated. For the function holomorphic f(z) = a + cpz p + cp+1z p+1 + ... defined in the unit disc satisfying |f(z)− 1| < 1, where 0 < a < 2, we estimate a module of angular derivative at th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::74de970740786508bf8d4c297831dc0d
https://doi.org/10.7468/jksmeb.2015.22.3.263
https://doi.org/10.7468/jksmeb.2015.22.3.263