Results 31 to 40 of about 26,251,070 (268)
On a subclass of p-valent functions
Demonstratio Mathematica, 2008 AbstractIn this paper we consider a subclass ...
openaire +1 more source
a*-families of analytic functions
International Journal of Mathematics and Mathematical Sciences, 1984 Using convolutions, a new family of analytic functions is introduced. This family, called a*-family, serves in certain situations to unify the study of many previously well known classes of analytic functions like multivalent convex, starlike, close-to ...
G. P. Kapoor, A. K. Mishra
doaj +1 more source
On a class of p-valent close-to-convex functions of order β and type α
International Journal of Mathematics and Mathematical Sciences, 1988 Let S(A,B,p,α) denote the class of functions g(z)=zp+∑n=p+1∞bnzn analytic in the unit disc U={z:|z|
M. K. Aouf
doaj +1 more source
Subclasses of p-Valent Functions Associated with Linear q-Differential Borel Operator
Mathematics, 2023 The aim of the present paper is to introduce and study some new subclasses of p-valent functions by making use of a linear q-differential Borel operator.We also deduce some properties, such as inclusion relationships of the newly introduced classes and ...
Adriana Cătaş +2 more
doaj +1 more source
A certain class of p-valently analytic functions
Mathematical and Computer Modelling, 2005 Let \(A_{p}(n)\) denote the class of functions \(f\) of the following form: \[ \displaystyle{f(z)=z^{p}+\sum^{\infty}_{k=n}a_{p+k}z^{p+k}}\, \, (p,n\in\mathbf{N}:=\{ 1,2,3,\dots \} )\, , \] which are analytic and \(p\)-valent in the open unit disk. The authors introduced some interesting subclasses of \(A_{p}(n)\) as follows. Definition 1. A function \(
H. M. Srivastava 0001 +2 more
openaire +1 more source
Differential sandwich theorems of p−valent analytic functions involving a linear operator
Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2013 In this paper we derive some subordination and superordination results for certain p-valent analytic functions in the open unit disc, which are acted upon by a class of a linear operator.
Aouf M. K., Seoudy T. M.
doaj +1 more source
On p - valent functions with negative and missing coefficients
Communications, Faculty Of Science, University of Ankara Series A1Mathematics and Statistics, 1995 Let \({\mathcal P}_ k(A,B,p,\alpha)\) be the family of functions \(f(z)= z^ p- \sum_{n\geq k+1} | a_ n| z^ n\), \(k\geq p\geq 1\) which are analytic and \(p\)-valent in \(\Delta=\{z\): \(| z|
Aouf, M. K., Darwish, H. E.
openaire +5 more sources
Hadamard Product Of Meromorphic p-valent Functions with Negative Coefficients [PDF]
, 2014 In this research we introduce the new class P of meromorphic p-valent functionswith negative coe¢ cient. Sharp results concerning coe¢ cient inequalities, growth and distortion, radii of starlikeness and convexity and the extreme points for the class P ...
Oqielat, Moa'ath N.
core +1 more source
Advanced Engineering Materials, EarlyView.Scandium (Sc)‐doped AlCoCrFeMo HEA coatings are fabricated via flame spraying with 0.1, 0.3, and 0.5 wt% Sc additions. Among these, the HEA‐Sc0.3 coating exhibits the highest corrosion resistance, indicated by a more positive corrosion potential and lower current density.
Pankaj Kumar +7 more
wiley +1 more source
Advanced Functional Materials, EarlyView.Significant nanoscale oxygen diffusion coefficient variations are measured in ferroelectric hafnium zirconium oxide films with grain boundaries and electrode interfaces exhibiting values 104 times larger than the grain cores. Overall coefficients are 10X larger for films prepared with metal nitride electrodes compared to refractory metals. New insights
Liron Shvilberg +6 more
wiley +1 more source