Zobrazeno 1 - 10
of 103
pro vyhledávání: '"K.-J Wirths"'
Publikováno v:
Cubo, Vol 12, Iss 1, Pp 15-21 (2010)
We consider the class of meromorphic univalent functions having a simple pole at and that map the unit disc onto the exterior of a domain which is starlike with respect to a point . We denote this class of functions by . In this paper, we find the ex
Externí odkaz:
https://doaj.org/article/f376ab42066a4148aa6eccc15c636ab4
Autor:
Ilgiz R. Kayumov, K.-J. Wirths
Publikováno v:
Analysis and Mathematical Physics. 9:1069-1085
In this article we give a survey on different methods to estimate the values of functionals in the coefficients of Bloch functions.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::90c8a9ec6ae6b46d68b8fe77b06f69b8
https://doi.org/10.1007/s13324-019-00303-z
https://doi.org/10.1007/s13324-019-00303-z
Akademický článek
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We characterize the duals and biduals of the $L^p$-analogues $\mathcal{N}_\alpha^p$ of the standard Nevanlinna classes $\mathcal{N}_\alpha$, $\alpha\ge-1$ and $1\le p\lt \infty$. We adopt the convention to take $\mathcal{N}_{-1}^p$ to be the classica
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c6e69846967e66e6fb1f9db0e646f44b
http://doc.rero.ch/record/304067/files/S0013091599001042.pdf
http://doc.rero.ch/record/304067/files/S0013091599001042.pdf
Autor:
ST. RUSCHEWEYH,K. J. WIRTHS
Publikováno v:
Proceedings of Indian National Science Academy, Vol 7, Iss 1 (2015)
CONVEX SUMS OF CONVEX UNIVALENT FUNCTIONS
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doajarticles::dd5d903b2b34395d0e4733e3f4c797ea
https://insa.nic.in/writereaddata/UpLoadedFiles/PINSA/20005a87_49.pdf
https://insa.nic.in/writereaddata/UpLoadedFiles/PINSA/20005a87_49.pdf
Autor:
K. J. Wirths, J. Xiao
Publikováno v:
Bulletin of the Australian Mathematical Society. 67:365-375
Forp∈ (0, ∞) defineQp0(∂Δ) as the space of all Lebesgue measurable complex-valued functionsf; on the unit circle ∂Δ for which ∫∂Δf;(z)|dz|/(2π) = 0 andas the open subarcIof ∂Δ varies. Note that eachQp,0(∂Δ) lies between the Diri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9accc5011241f547dbe4e34844d67964
https://doi.org/10.1017/s0004972700037175
https://doi.org/10.1017/s0004972700037175
Publikováno v:
Archiv der Mathematik. 74:356-364
In this article by a new and simple method we derive new and old coefficient bounds and distortion theorems for functions G(z) analytic in the unit disk and satisfying $\sup\limits _{|z|\le 1}(|G(z)|(1-|z|^2) ^\alpha )\leqq 1$ for some $\alpha \geqq
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::013149e423f109e82ca2df3b421748c7
https://doi.org/10.1007/s000130050455
https://doi.org/10.1007/s000130050455
Autor:
K. J. Wirths
Publikováno v:
Complex Variables, Theory and Application: An International Journal. 41:45-61
For a holomorphic function F defined on the unit disk D let . F is called a Bloch function if We describe a method to get inequalities for real functionals varying on the class of locally univalent Bloch functions F with M(F)≤1. As an application i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5e8024b32cc5710daad82faeb18f0b9c
https://doi.org/10.1080/17476930008815236
https://doi.org/10.1080/17476930008815236
Autor:
K. J. Wirths
Publikováno v:
Constructive Approximation. 15:427-440
In this paper we construct Bloch functions F for which the set {z | e sup|ζ| < 1 |F'(ζ)| ( 1 - |ζ|2) = |F'(z)| ( 1 - |z|2)} is an analytic Jordan curve tangential to the unit disk in some points. It is proved that, using such functions, we can der
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::61f66e7424ac14cf667b3962b98dcd60
https://doi.org/10.1007/s003659900115
https://doi.org/10.1007/s003659900115
Akademický článek
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