Results 221 to 230 of about 9,723 (251)

Optimized Chemical Bath Deposition for Low Cost, Scalable, and Environmentally Sustainable Synthesis of Star-Like ZnO Nanostructures. [PDF]

ACS Omega
Di Mari GM, La Matta V, Strano V, Reitano R, Cerruti P, Filippone G, Mirabella S, Bruno E.   +7 more
europepmc   +1 more source

The Spectrum and Carrier Frequencies of Common Pathogenic Cystic Fibrosis Transmembrane Conductance Regulator Gene Mutations in Men from the General Population: The Role of Ethnicity. [PDF]

Int J Mol Sci
Osadchuk L, Ivanov M, Komova E, Osadchuk A.   +3 more
europepmc   +1 more source

Biased estimates of phylogenetic branch lengths resulting from the discretised Gamma model of site rate heterogeneity

Ferretti L, Golubchik T, Di Lauro F, Ghafari M, Villabona-Arenas J, Atkins KE, Fraser C, Hall M.   +7 more
europepmc   +1 more source

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The sharp bound of the third Hankel determinant for starlike functions

Forum mathematicum, 2022
In this paper, we prove the sharp inequality | H 3 , 1 ⁢ ( f ) | ≤ 4 / 9 \lvert H_{3,1}(f)\rvert\leq 4/9 for starlike functions 𝑓, where H 3 , 1 ⁢ ( f ) H_{3,1}(f) is the third Hankel determinant, thus solving a long-standing problem.
B. Kowalczyk, A. Lecko, D. K. Thomas
semanticscholar   +1 more source

A Conjecture on H3(1) for Certain Starlike Functions

Mathematica Slovaca, 2022
We prove a conjecture concerning the third Hankel determinant, proposed by Kumar and Kamaljeet in [A cardioid domain and starlike functions, Anal. Math. Phys. 11 (2021), Art.
Neha Verma, S. S. Kumar
semanticscholar   +1 more source

Certain Results on Starlike and Parabolic Starlike Functions [PDF]

International Journal of Open Problems in Computer Science and Mathematics, 2015
Using the technique of differential subordination, we obtain certain results for starlike and parabolic starlike functions involving the differential operator zf ′(z) f(z) ( 1 + α zf ′′(z) f ′(z) ) . We study the above operator for multivalent functions and also conclude some results for univalent functions.
Richa Brar, Sukhwinder Singh Billing
openaire   +1 more source

A Criterion for Starlikeness

Mathematische Nachrichten, 1989
Let \(f(z)=z+a_ 2z^ 2+..\). be analytic in \(U=\{z:\) \(| z|
Shigeyoshi Owa, Milutin Obradović
openaire   +2 more sources

Hankel determinants for starlike and convex functions associated with sigmoid functions

Forum mathematicum, 2021
This paper is concerned with Hankel determinants for starlike and convex functions related to modified sigmoid functions. Sharp bounds are given for second and third Hankel determinants.
A. Riaz, Mohsan Raza, D. Thomas
semanticscholar   +1 more source