Results 31 to 40 of about 329,116 (290)
Some properties and results for certain subclasses of starlike and convex functions [PDF]
Sahand Communications in Mathematical Analysis, 2017 In the present paper, we introduce and investigate some properties of two subclasses $ Lambda_{n}( lambda , beta ) $ and $ Lambda_{n}^{+}( lambda , beta ) $; meromorphic and starlike functions of order $ beta $.
Mohammad Taati +2 more
doaj
On Some Subclasses of Harmonic Functions Defined by Fractional Calculus
International Journal of Mathematics and Mathematical Sciences, 2008 The purpose of this paper is to study subclasses of normalized harmonic functions with positive real part using fractional derivative. Sharp estimates for coefficients and distortion theorems are given.
R. A. Al-Khal, H. A. Al-Kharsani
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Convex functions and the rolling circle criterion
International Journal of Mathematics and Mathematical Sciences, 1995 Given 0≤R1≤R2≤∞, CVG(R1,R2) denotes the class of normalized convex functions f in the unit disc U, for which ∂f(U) satisfies a Blaschke Rolling Circles Criterion with radii R1 and R2.
V. Srinivas, O. P. Juneja, G. P. Kapoor
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On Some Differential Operators Related to A Type of Meromorphic Univalent Functions
Tikrit Journal of Pure Science, 2023 The goal of this article is to introduce a class of a type of meromorphic function which defined by some differential operators. Then we study various properties of these operators such as, coefficient inequality, both of growth and distortion theorems,
Majida Kh. Abdullah +1 more
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Karpatsʹkì Matematičnì Publìkacìï, 2022 The aim of present paper is to find out different interesting properties and characterization of unified class $P_{\gamma}(A, B, \alpha,\sigma)$ of prestarlike functions with negative coefficients in the unit disc $U$.
D. Soybaş, S.B. Joshi, H.H. Pawar
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Distortion mechanisms in varactor diode-tuned microwave filters [PDF]
, 2006 This paper examines the broadband distortion behavior in flexible filters employing varactor-diode tuning elements. Series- and parallel-resonant varactor-loaded transmission-lines, both commonly used in bandpass and bandstop microwave filters, are ...
Carey-Smith, BE, Warr, PA
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Evaluation of system-related magnetic resonance imaging geometric distortion in radiation therapy treatment planning: two approaches and effectiveness of three-dimensional distortion correction [PDF]
, 2022 We propose two methods to evaluate system-related distortion in magnetic resonance imaging (MRI) in radiation therapy treatment planning (RTP) and demonstrate the importance of three-dimensional (3D) distortion correction (DC) by quantitatively measuring
Kamomae, Takeshi +7 more
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Quantum rate distortion, reverse shannon theorems, and source-channel separation [PDF]
, 2013 We derive quantum counterparts of two key theorems of classical information theory, namely, the rate-distortion theorem and the source-channel separation theorem.
Wilde, Mark M. +5 more
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A class of univalent functions with varying arguments
International Journal of Mathematics and Mathematical Sciences, 1992 f(z)=z+∑m=2∞amzm is said to be in V(θn) if the analytic and univalent function f in the unit disc E is nozmalised by f(0)=0, f′(0)=1 and arg an=θn for all n.
K. S. Padmanabhan, M. Jayamala
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Advanced Functional Materials, EarlyView.The analysis of optical eigenmodes in chiral liquid crystal with perpendicular or tilted helical axis, and their correspondence with the external medium, leads to an intuitive understanding of the angle and wavelength dependency of transmissive and reflective diffraction.
Ke Xu +5 more
wiley +1 more source