Results 11 to 20 of about 55,452 (285)

Inclusion and properties neighbourhood for certain p-valent functions associated with complex order and q–p-valent Cătaş operator

open access: yesJournal of Taibah University for Science, 2020
Here in our paper, we present two new subclasses of multivalent analytic functions and complex order by using q–p-valent Cătaş operator. Also we obtain coefficient estimates and consequent inclusion relationships involving the $N_{i,\delta }^{\mathbf {p}
M. K. Aouf, S. M. Madian
doaj   +2 more sources

Generalizations of p-valent functions via the hadamard product

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1982
The classes of univalent prestarlike functions Rα, α≥−1, of Ruscheweyh [1] and a certain generalization of Rα were studied recently by Al-Amiri [2]. The author studies, among other things, the classes of p-valent functions R(α+p−1) where p is a positive ...
Anil K. Soni
doaj   +1 more source

ON CERTAIN MEROMORPHIC P-VALENT FUNCTIONS

open access: yesTaiwanese Journal of Mathematics, 1998
Summary: A certain differential operator \(D^n\) is introduced for functions of the form \(f(z)={1\over z^p}+\sum^\infty_{k=0}a_kz^k\) which are analytic in \(E^*=\{z ...
LIU, JINLIN, OWA, SHIGEYOSHI
openaire   +4 more sources

Certain Coefficient Bounds for p-Valent Functions

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2007
In the present paper, the authors obtain sharp bounds for certain subclasses of p-valent functions. The results are extended to functions defined by convolution.
C. Ramachandran   +2 more
doaj   +1 more source

A remark on certain p-valent functions

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1996
The object of the present paper is to prove an interesting result for certain analytic and p-valent functions in the unit disc U={z:|z|
M. K. Aouf, H. E. Darwish
doaj   +1 more source

On certain classes of p-Valent functions

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1986
Let Vkλ(α,b,p) (k≥2, b≠0 is any complex number, 0 ...
M. K. Aouf
doaj   +1 more source

On A Class Of P - Valent Functions Defined By Integral Operator

open access: yesJournal of Kufa for Mathematics and Computer, 2013
In this paper , we study a new class  of p-valent functions with negative coefficient defined by   integral operator in the unit disk . We obtain some results of this class .
Rafid Habib Buti, Mustafa Abbas Fadhel
doaj   +1 more source

Combinatorics of tropical Hurwitz cycles [PDF]

open access: yes, 2015
We study properties of the tropical double Hurwitz loci defined by Bertram, Cavalieri and Markwig. We show that all such loci are connected in codimension one.
Hampe, Simon
core   +1 more source

Reciprocal classes of p-valently spirallike and p-valently Robertson functions [PDF]

open access: yesJournal of Inequalities and Applications, 2011
Abstract For p-valently spirallike and p-valently Robertson functions in the open unit disk U , reciprocal classes S p
Uyanık, Neslihan   +3 more
openaire   +4 more sources

Coefficient estimates for some classes of p-valent functions

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1988
Let Ap, where p is a positive integer, denote the class of functions f(z)=zp+∑n=p+1anzn which are analytic in U={z:|z|
M. K. Aouf
doaj   +1 more source

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