Results 81 to 90 of about 5,426 (207)
Certain classes of bi-univalent functions with bounded boundary variation
, 2017 In their pioneering work dated 2010 on the subject of bi-univalent functions, Srivastava et al. actually revived the study of the coefficient problems involving bi-univalent functions in recent years. Inspired by the pioneering work of Srivastava et Hi.,
ORHAN, Halit +5 more
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Subclasses of Bi-Univalent Functions Associated with Hohlov Operator [PDF]
, 2017 The coefficients estimate problem for Taylor-Maclaurin series is still an open problem especially for a function in the subclass of bi-univalent functions.
Aini Janteng +2 more
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Univalent functions with logarithmic restrictions
, 1991 It is known that univalence property of regular functions is better understood in terms of some restrictions of logarithmic type. Such restrictions are connected with natural stratifications of the studied classes of univalent functions.
Grinshpan, A.
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Integrated Partial Sums of Convolutions of Univalent Functions
, 1993 Let S be the set of normalized univalent functions. We show that for f(z) = ∑∞k = 1akzk, g(z) = ∑∞k = 1bkzk ∈ S, [formula] if n < 3 or n > 6. For n = 4 we obtain the corresponding result if g is restricted to the class of close-to-convex functions.
Ronning, F.
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Birth of the theory of univalent functions
, 1998 "Univalent" is the complex analyst's term for "one-to-one" functions. A univalent function has a non-vanishing derivative. Riemann Mapping Theorem stated in 1851 could not find some interesting applications until P.
Lam, Hwee Peng
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Certain subclass of alpha-convex bi-univalent functions defined using $q$-derivative operator
summary:The present investigation deals with a new subclass of alpha-convex bi-univalent functions in the unit disc $E=\left\rbrace z\colon \mid z \mid
Singh, Gurcharanjit, Singh, Gagandeep
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Integrals of certain univalent functions
, 1979 In this paper we study integrals of certain univalent functions in the unit disc E = { z : | z | > 1 } E = \{ z:|z| > 1\} and ...
Ram Singh, Sunder Singh
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Univalent functions with univalent derivatives [PDF]
Bulletin of the American Mathematical Society, 1969 Shah, S. M., Trimble, S. Y.
openaire +2 more sources
Generalized Salagean-type harmonic univalent functions
, 2012 The main purpose of this paper is to introduce a generalization of modified Salagean operator for harmonic univalent functions. We define a new subclass of complex-valued harmonic univalent functions by using this operator, and we investigate necessary ...
Yalçın, Sibel, Yaşar, Elif
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Salagean-type harmonic univalent functions
, 2003 We take the Sakaguchi class of analytic univalent functions which are starlike with respect to symmetric points in the open unit disc ∆ and extend it to the complex-valued harmonic univalent functions in ∆.
Jay M Jahangiri, Om P Ahuja
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