Results 21 to 30 of about 34,257 (290)
Coefficient inequality for perturbed harmonic mappings
Applied Mathematics Letters, 2010 AbstractThe aim of this work is to give the coefficient inequality for the perturbed harmonic mappings in the open unit disc D.
Çağlar, Mert +2 more
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THE ‘TRUE’ LEVEL OF INCOME INEQUALITY IN PAKISTAN
Pakistan Journal of Applied Economics, 2022 The Household Integrated Economic Surveys (HIES) of the Pakistan Bureau of Statistics (PBS) reveal a low level of income inequality in Pakistan. However, this is due to large sampling and non-sampling errors.
Hafiz A. PASHA
doaj
New Class of Specific Functions with Fractional Derivatives
AxiomsLet An be the class of specific analytic functions f(z)=z+∑k=1∞a1+knz1+kn(n∈N={1,2,3,…}) in the open unit disk U.
Hatun Özlem Güney, Shigeyoshi Owa
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Interregional inequalities at NUTS level 3 in Macedonia
Acta Universitatis Carolinae Geographica, 2018 This article evaluates interregional inequality among Macedonian regions in the period 2008–2014 by employing statistical measures of regional inequality, including the coefficient of variation, Gini coefficient of concentration and Theil index. Regional
Dejan Iliev
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Coefficient inequalities for starlikeness and convexity
Tamkang Journal of Mathematics, 2012 For an analytic function $f(z)=z+\sum_{n=2}^\infty a_n z^n$ satisfying the inequality $\sum_{n=2}^\infty n(n-1)|a_n|\leq \beta$, sharp bound on $\beta$ is determined so that $f$ is either starlike or convex of order $\alpha$. Several other coefficient inequalities related to certain subclasses are also investigated.
Ali, Rosihan M. +2 more
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On a Coefficient Inequality for Starlike Functions [PDF]
Proceedings of the American Mathematical Society, 1975 M. S. Robertson considered a coefficient inequality I I for starlike functions that, if true, would imply a generalized Bieberbach coefficient inequality B B for close to convex functions. An example is given of a starlike function whose coefficients do not satisfy coefficient inequality I I .
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Mixing MIR inequalities with two divisible coefficients [PDF]
Mathematical Programming, 2009 In the paper under review, sets \(P^{MMIX}\subset \mathbb R ^+ \times \mathbb Z ^n\) whose elements satisfy \(s+Lz_t\geq b_t\) \((1\leq t \leq k)\), \(s+Cz_t\geq b_t\) \((k+1\leq t \leq n)\), for fixed reals \(b_t\) \((1\leq t \leq n)\), \(L\), \(C>0\) with \(L/C\in \mathbb Z\), are considered. The authors describe a way to obtain the convex hull conv\(
Constantino, Miguel +2 more
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Current Tracking Adaptive Control of Brushless DC Motors
International Journal of Adaptive Control and Signal Processing, EarlyView.In this paper, the current tracking for Brushless Direct Current motors is approached considering uncertainty in the parameters of the motor's model. An adaptive control scheme to compensate electrical parameters uncertainty is proposed without requiring any knowledge of the mechanical parameters.
Fernanda Ramos‐García +3 more
wiley +1 more source
Application of $ q $-starlike and $ q $-convex functions under $ (u, v) $-symmetrical constraints
AIMS MathematicsThis research paper addressed a significant knowledge gap in the field of complex analysis by introducing a pioneering category of $ q $-starlike and $ q $-convex functions intricately interconnected with $ (u, v) $-symmetrical functions. Recognizing the
Hanen Louati +4 more
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Ecos de Economía, 2020 Four measurements of per-capita education expenditure are used to analyze its effect on income inequality at the county-level in Chile. The latter is quantified through the Gini coefficient, Theil index, and the S80/S20 and S90/S10 ratios.
Felipe M. Gutiérrez-Garrido +1 more
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