Results 41 to 50 of about 1,664 (262)

On The Third-Order Complex Differential Inequalities of ξ-Generalized-Hurwitz–Lerch Zeta Functions

open access: yesMathematics, 2020
In the z- domain, differential subordination is a complex technique of geometric function theory based on the idea of differential inequality. It has formulas in terms of the first, second and third derivatives.
Hiba Al-Janaby   +2 more
doaj   +1 more source

Third-Order Differential Subordination for Generalized Struve Function Associated with Meromorphic Functions

open access: yesمجلة بغداد للعلوم
  Previously, many works dealt with the study of the order differential subordination and shortly after that other studies dealt with the  order differential subordination in the unit disc.
Suha J. Hammad   +2 more
doaj   +1 more source

Differential Subordination and Superordination Results for q-Analogue of Multiplier Transformation

open access: yesFractal and Fractional, 2023
The results obtained by the authors in the present paper refer to quantum calculus applications regarding the theories of differential subordination and superordination.
Alina Alb Lupaş, Adriana Cătaş
doaj   +1 more source

Some applications of differential subordination [PDF]

open access: yesBulletin of the Australian Mathematical Society, 1985
Let Sa (h) denote the class of analytic functions f on the unit disc E with f (0) =0 = f′ (0) −1 satisfying , where (a real), denotes the Hadamard product of Ka with f, and h is a convex univalent function on E, with Re h > 0. Let . It is proved that F ε Sa (h) whenever f ε Sa (h) and also that for a ≥ 1.
Padmanabhan, K. S., Parvatham, R.
openaire   +1 more source

New Applications of Fuzzy Set Concept in the Geometric Theory of Analytic Functions

open access: yesAxioms, 2023
Zadeh’s fuzzy set theory offers a logical, adaptable solution to the challenge of defining, assessing and contrasting various sustainability scenarios.
Alina Alb Lupaş
doaj   +1 more source

Characterization of a Recyclate‐Based MgO‐Steel Composite As‐Sintered Inert Anode Candidate After Exposure to Cryolite Electrolysis

open access: yesAdvanced Engineering Materials, EarlyView.
Carbon‐free inert anodes are essential for decarbonizing aluminum electrolysis. This study investigates a recyclate‐based MgO‐316L steel composite anode tested under galvanostatic Hall–Héroult conditions in cryolite at 1000°C. Microstructural analysis reveals selective MgO fluorination, spinel and oxide layer formation, electrolyte infiltration, and ...
Serhii Yaroshevskyi   +7 more
wiley   +1 more source

Liquid Bismuth Catalyst Enables High‐CO‐Selectivity in CO2 Hydrogenation

open access: yesAdvanced Science, EarlyView.
This work introduces a dynamic liquid bismuth catalyst for efficient CO2‐to‐syngas conversion. Stabilized molten Bi nanodroplets on a defective VOx support enable a reversible Bi3+/Bi0 redox cycle at moderate temperatures. Mechanistic insights reveal that Ni‐Bi dual sites synergistically activate H2 and cleave CO2, leading to high CO selectivity ...
Xinxin Lu   +6 more
wiley   +1 more source

Differential Subordination and Superordination of Multivalent Functions Involving Differential Operator

open access: yesAl-Mustansiriyah Journal of Science, 2021
In the present work, we derive some properties of subordination and superordination results associated with the Hadamard product concept involving the composition of the differential operator.
Huda Fawzi Isawi, Abdul Rahman S. Juma
doaj   +1 more source

Strong Differential Subordination to Briot-Bouquet Differential Equations

open access: yesJournal of Differential Equations, 1994
Two theorems are proved on differential subordination \[ p(z) + {zp'(z) \over z \bigl( f'(z)/f(z) \bigr) \bigl[ \alpha p(z) + \beta \bigr] } \prec g(z). \] In fact, \(p(z) \prec g(z)\) provided \(p\) is analytic in the unit disc \(D\), \(p(0) = c\), \(g\) is univalent in \(D\), \(f\) analytic in \(D\) such that \(z(f'(z)/f(z))\) is analytic and \(\neq ...
Antonino, J.A., Romaguera, S.
openaire   +1 more source

Optimal Grazing Exclusion Duration to Enhance Soil Carbon Sequestration in Degraded Grasslands

open access: yesAdvanced Science, EarlyView.
Across China, grazing exclusion reaches the national mean soil organic carbon recovery benchmark sooner in high‐MAP regions (> 500 mm), but recovery is much slower where MAP < 300 mm. Scaling this strategy to 70% of China's degraded grasslands would sequester about 1.52 Pg of soil carbon over 10 years—roughly 17% of annual global fossil‐fuel emissions.
Bin Zhang   +9 more
wiley   +1 more source

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