Search Results - "Ravichandran, V."
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On a Subclass of Strongly Starlike Functions Associated with Exponential Function
Published in Bulletin of the Malaysian Mathematical Sciences Society (2015)“…Let S e ∗ denote the class of analytic functions f in the open unit disk normalized by f ( 0 ) = f ′ ( 0 ) - 1 = 0 and satisfying the condition z f ′ ( z ) / f…”
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Bounds for the second Hankel determinant of certain univalent functions
Published in Journal of inequalities and applications (05-06-2013)“…The estimates for the second Hankel determinant a 2 a 4 − a 3 2 of the analytic function f ( z ) = z + a 2 z 2 + a 3 z 3 + ⋯ , for which either z f ′ ( z ) /…”
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3
Radius Problems for Starlike Functions Associated with the Sine Function
Published in Bulletin of the Iranian Mathematical Society (07-02-2019)“…Let S s ∗ be the class of normalized analytic functions f defined on the unit disk such that the quantity z f ′ ( z ) / f ( z ) lies in an eight-shaped region…”
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4
Subordinations for Functions with Positive Real Part
Published in Complex analysis and operator theory (01-06-2018)“…Some sufficient conditions are determined for certain first order differential subordinations to imply the corresponding analytic solution is subordinate to a…”
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Coefficient estimates for bi-univalent Ma-Minda starlike and convex functions
Published in Applied mathematics letters (01-03-2012)“…Estimates on the initial coefficients are obtained for normalized analytic functions f in the open unit disk with f and its inverse g = f − 1 satisfying the…”
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6
Green synthesis, characterization, antibacterial, antioxidant and photocatalytic activity of Parkia speciosa leaves extract mediated silver nanoparticles
Published in Results in physics (01-12-2019)“…The present study revealed the possible eco-friendly biosynthesis, biological activity and photocatalytic activity of Parkia speciosa leaf aqueous extract…”
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7
Differential subordination for bounded turning functions using pre-Schwarzian and the Schwarzian derivatives
Published in Analysis and mathematical physics (01-12-2024)“…A normalized analytic function defined on the open unit disk is a bounded turning function if its derivative has positive real part. Such functions are…”
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Star-likeness associated with the exponential function
Published in Turkish journal of mathematics (01-01-2019)Get full text
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Radii of starlikeness associated with the lemniscate of Bernoulli and the left-half plane
Published in Applied mathematics and computation (05-02-2012)“…A normalized analytic function f defined on the open unit disk in the complex plane is in the class SL if zf′( z)/ f( z) lies in the region bounded by the…”
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10
Synthesis of nanocrystalline nickel-iron alloys-A novel chemical reduction method
Published in Chemical physics impact (01-06-2023)“…Ultra fine magnetic particles of NixFe100-x alloys were synthesized by a novel chemical reduction of the precursor salts by an alkali earth metal (Al) in an…”
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11
Green Chemistry – An Environmentally Benign Chemistry
Published in Journal of young pharmacists (01-04-2018)“…Chemistry is a distinguished part of our daily lives. Food and drink has been made safe to consume, the development of cosmetics allowed us to beautify and…”
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12
Exponential radii of starlikeness and convexity of some special functions
Published in The Ramanujan journal (01-09-2024)“…Using the Hadamard factorization, the exponential radii of starlikeness and convexity for various special functions like Wright function, Lommel function,…”
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13
Sufficient Conditions for Strong Starlikeness
Published in Bulletin of the Iranian Mathematical Society (01-10-2021)“…Let p be an analytic function defined on the open unit disc D with p ( 0 ) = 1 and 0 < α ≤ 1 . The conditions on complex valued functions C , D , and E are…”
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14
Convolution and Convex Combination of Harmonic Mappings
Published in Bulletin of the Iranian Mathematical Society (03-10-2019)“…For each a ∈ [ 0 , 1 ) , the convolution of the right half-plane harmonic mapping having dilatation ( a - z ) / ( 1 - a z ) with the right half-plane harmonic…”
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15
Seed Nutrient and Seed Hormonal Contents Underlying Anaerobic Germination Tolerance in Black Coloured Rice Landraces of Tamil Nadu
Published in Russian journal of plant physiology (01-02-2024)“…Good seed germination is a prerequisite for direct-seeded rice cultivation to withstand anaerobic conditions. In transplanted rice cultivation, labor costs and…”
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Starlikeness of a product of starlike functions with non-vanishing polynomials
Published in Analysis and mathematical physics (01-04-2023)“…For a function f starlike of order α , 0 ⩽ α < 1 , a non-constant polynomial Q of degree n which is non-vanishing in the unit disc D and β > 0 , we consider…”
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17
Impact of the viruses associated with mosaic and yellow leaf disease on varietal degeneration in sugarcane
Published in Phytoparasitica (01-09-2019)“…The viruses Sugarcane mosaic virus (SCMV) and Sugarcane streak mosaic virus (SCSMV) causing mosaic disease and Sugarcane yellow leaf virus (SCYLV) causing…”
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18
Radii of Starlikeness and Convexity of Some Entire Functions
Published in Bulletin of the Malaysian Mathematical Sciences Society (01-11-2020)“…A normalized analytic function f is lemniscate starlike if the quantity z f ′ ( z ) / f ( z ) lies in the region bounded by the right half of the lemniscate of…”
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Radius of starlikeness of certain analytic functions
Published in Revista de la Real Academia de Ciencias Exactas, Físicas y Naturales. Serie A, Matemáticas (01-10-2021)“…We investigate radius problems for three classes of normalized analytic functions f characterized by its ratio with certain normalized analytic functions g …”
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Starlikeness associated with crescent-shaped region
Published in Analysis and mathematical physics (01-12-2022)“…In this paper, we investigate the sufficient conditions for an analytic function f defined in the open unit disk D ⊆ C satisfying f ( 0 ) = f ′ ( 0 ) - 1 = 0 ,…”
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