Results 21 to 30 of about 2,322 (136)
(α, β, λ, δ, m, Ω)p−Neighborhood for some families of analytic and multivalent functions
Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2015 In the present investigation, we give some interesting results related with neighborhoods of p−valent functions. Relevant connections with some other recent works are also pointed out.
Orhan Halit
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A class of univalent functions with real coefficients [PDF]
, 2018 In this paper we study class $\mathcal{S}^+$ of univalent functions $f$ such that $\frac{z}{f(z)}$ has real and positive coefficients. For such functions we give estimates of the Fekete-Szeg\H{o} functional and sharp estimates of their initial ...
Obradovic, Milutin, Tuneski, Nikola
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Journal of Mathematical Inequalities, 2020 In this paper, we use q -derivative operator to define a new subclass of starlike functions related with the lemniscate of Bernoulli. For this function class we obtain upper bound of the third Hankel determinant.
N. Khan +4 more
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Demonstratio Mathematica, 2023 The contribution of fractional calculus in the development of different areas of research is well known. This article presents investigations involving fractional calculus in the study of analytic functions. Riemann-Liouville fractional integral is known
Alb Lupaş Alina, Acu Mugur
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Estimate for Initial MacLaurin Coefficients of Certain Subclasses of Bi-univalent Functions [PDF]
, 2015 In this paper, estimates for second and third MacLaurin coefficients of certain subclasses of bi-univalent functions in the open unit disk defined by convolution are determined, and certain special cases are also indicated.
Alkahtani, Badr +2 more
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Simple sufficient conditions for starlikeness and convexity for meromorphic functions
Open Mathematics, 2016 In this paper we investigate some extensions of sufficient conditions for meromorphic multivalent functions in the open unit disk to be meromorphic multivalent starlike and convex of order α.
Goswami Pranay +2 more
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Subordination results for a class of analytic functions
Moroccan Journal of Pure and Applied Analysis, 2021 In this paper, we derive several subordination results and integral means result for certain class of analytic functions with complex order defined by means of q-differential operator. Some interesting corollaries and consequences of our results are also
Aouf M. K. +2 more
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Coefficient estimates of new classes of q-starlike and q-convex functions of complex order
, 2016 We introduce new classes of q -starlike and q -convex functions of complex order involving the q -derivative operator defined in the open unit disc. Furthermore, we find estimates on the coefficients for second and third coefficients of these classes ...
T. Seoudy, M. Aouf
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Convolutions of harmonic right half-plane mappings
Open Mathematics, 2016 We first prove that the convolution of a normalized right half-plane mapping with another subclass of normalized right half-plane mappings with the dilatation −z(a+z)/(1+az)$ - z(a + z)/(1 + az)$ is CHD (convex in the horizontal direction) provided a=1$a
Li YingChun, Liu ZhiHong
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On a class of analytic functions generated by fractional integral operator
Concrete Operators, 2017 In this note, we improve the idea of the Tsallis entropy in a complex domain. This improvement is contingent on the fractional operator in a complex domain (type Alexander).
Ibrahim Rabha W.
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