Results 121 to 130 of about 2,322 (136)
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Bohr–Rogosinski Phenomenon for $$\mathcal {S}^*(\psi )$$ and $$\mathcal {C}(\psi )$$
Mediterranean Journal of Mathematics, 2021In Geometric function theory, occasionally attempts have been made to solve a particular problem for the Ma-Minda classes, S∗(ψ) and C(ψ) of univalent starlike and convex functions, respectively. Recently, a popular radius problem generally known as Bohr’
Kamaljeet Gangania, S. S. Kumar
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International Journal of Latest Technology in Engineering Management & Applied Science
Two subclasses of starlike and convex functions analytic in the unit open disk using q-derivative operator have been investigated in the present paper. The necessary and sufficient condition for the function belonging to these classes have been obtained.
Sanjay Issar, Hemlata
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Two subclasses of starlike and convex functions analytic in the unit open disk using q-derivative operator have been investigated in the present paper. The necessary and sufficient condition for the function belonging to these classes have been obtained.
Sanjay Issar, Hemlata
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A Study On Coefficient Bounds for a Newly Defined Subfamily of Convex Functions
Physical Education, Health and Social SciencesOne of the most crucial problems in geometric function theory is the study of the Hankel determinant generated by the Maclaurin series of analytic functions that belong to particular classes of normalized univalent functions.
Kalsoom Bibi +5 more
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Studia Universitatis Babeş-Bolyai. Mathematica
. In this academic research note, some familiar operators prearranged by fractional-order calculus will first be introduced and various characteristic properties of those operators will next be propounded.
Hüseyin Irmak
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. In this academic research note, some familiar operators prearranged by fractional-order calculus will first be introduced and various characteristic properties of those operators will next be propounded.
Hüseyin Irmak
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Fractional Calculus Operator and Certain Applications in Geometric Function Theory
Sarajevo Journal of MathematicsUsing a operator involving fractional calculus introduced by Owa and Srivastava [8], two novel families: $${\mathcal V}_{\delta}^{\alpha, \beta}(\nu;\gamma)\;\; \mbox{and} \;\;{\mathcal W}_{\delta}^{\alpha, \beta}(\mu;\gamma)$$ $$(\delta\neq 0,\; \alpha
Useyin Irmak, N. Tuneski
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New Classes of Non-normalized Meromorphically Multivalent Functions
Sarajevo Journal of MathematicsMaking use of certain differential operators, this paperintroduces two new classes: $${\mathcalM}_{m,n,\delta}^{\kappa}(q;p)\;\; \; \mbox{and} \;\;\;{\mathcalSK}_{m,n, \delta}^{\kappa}(q;p)$$ which consist of non-normalized meromorphically multivalent ...
Useyin Irmak
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Hankel and symmetric Toeplitz determinants for Sakaguchi starlike functions
Studia Universitatis Babeş-Bolyai. Mathematica. In this paper, we consider the class of starlike functions with respect to symmetric points which are also known as Sakaguchi starlike functions. We de- termine best possible bounds on Zalcman conjecture |a_n^2 – a_(2n-1) | and generalized Zalcman ...
Sushil Kumar +2 more
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Certain class of analytic functions defined by q-analogue of Ruscheweyh differential operator
Studia Universitatis Babeş-Bolyai. MathematicaIn this paper, we obtain coefficient estimates, distortion theorems, radii of close-to-convexity, starlikeness and convexity for functions belonging to the class of analytic starlike and convex functions defined by q−analogue of Ruscheweyh differential ...
M. Aouf, A. Moustafa, Fawziah Al-Quhali
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Certain theorems involving differential superordination and sandwich-type results
Studia Universitatis Babeş-Bolyai. Mathematica. To obtain the main result of the present paper, we use the technique of differential superordination. As special cases of our main result, we obtain sufficient conditions for f ∈ A to be φ−like, parabolic φ−like, starlike, parabolic starlike, close-to ...
Hardeep Kaur, R. Brar, S. S. Billing
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Generalized q-Srivastava-Attiya operator on multivalent functions
Studia Universitatis Babeş-Bolyai. MathematicaIn this article, we define a generalized q-integral operator on multivalent functions. It generalizes many known linear operators in Geometric Function Theory (GFT).
R. S. Badar, K. Noor
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