نتایج جستجو برای: harmonic starlike functions

تعداد نتایج: 533387  

Journal: :Symmetry 2023

Many authors have obtained some inclusion properties of certain subclasses univalent and functions associated with distribution series, such as Pascal distribution, Binomial Poisson Mittag–Leffler-type Geometric distribution. In the present paper, we obtain relations harmonic class H(α,δ) classes SH* starlike KH convex functions, also for TNHβ TRHβ operator Υ defined by applying convolution reg...

Journal: :Monatshefte für Mathematik 2023

We investigate harmonic mappings $$f=h+{\bar{g}}$$ defined in the unit disk, where g and h satisfy certain prescribed conditions analytic part belongs to Ma Minda class of starlike functions. Certain sharp radius results for univalency, close-to-convexity, fully starlikeness, convexity, strongly starlikeness are established. also calculate uniformly convexity these Several enhance well-known re...

Journal: :bulletin of the iranian mathematical society 0
k. sharma department of mathematics‎, ‎atma ram sanatan dharma college‎, ‎university of delhi‎, ‎delhi 110021‎, ‎india. v. ravichandran department of mathematics‎, ‎university of delhi‎, ‎delhi--110007‎, ‎india.

let $p$ be an analytic function defined on the open unit disc $mathbb{d}$ with $p(0)=1.$ the conditions on $alpha$ and $beta$ are derived for $p(z)$ to be subordinate to $1+4z/3+2z^{2}/3=:varphi_{c}(z)$ when $(1-alpha)p(z)+alpha p^{2}(z)+beta zp'(z)/p(z)$ is subordinate to $e^{z}$. similar problems were investigated for $p(z)$ to lie in a region bounded by lemniscate of bernoulli $|w^{2}-1...

Journal: :Annales Polonici Mathematici 1972

Journal: :Bulletin of the Australian Mathematical Society 1980

2006
DANIEL BREAZ NICOLETA BREAZ

In this paper we consider the classes of starlike functions, starlike functions of order α, convex functions, convex functions of order α and the classes of the univalent functions denoted by SH (β), SP and SP (α, β). On these classes we study the convexity and αorder convexity for a general integral operator.

Journal: :Proceedings of the American Mathematical Society 1961

Journal: :Proceedings of the American Mathematical Society 1985

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