نتایج جستجو برای: Starlike functions

تعداد نتایج: 490958  

Journal: :mathematics interdisciplinary research 0
mohammad taati payame noor university sirous moradi arak university shahram najafzadeh payame noor university

in this paper, we consider a new class of analytic functions in the unit disk using polynomials of order alpha. we give some sufficient conditions for functions belonging to this class.

Journal: :Proceedings of the American Mathematical Society 1974

Journal: :bulletin of the iranian mathematical society 2011
s. k. lee r. m. ali v. ravichandran s. supramaniam

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

2009
S. M. Khairnar

AbstractIn this paper we introduce the subclass K(μ, γ, η, α, β) of β-uniformly convex and β-uniformly starlike functions which are analytic and multivalent with negative coefficients defined by using fractional calculus operators. Characterization property exhibited by the functions in the class and the results of modified Hadamard product are discussed. Connections with the popular subclasses...

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