Ara
Toplam kayıt 21, listelenen: 11-20
On an extension of kummer-type II transformation
(Işık University Press, 2014)
In the theory of hypergeometric and generalized hypergeometric series, Kummer’s type I and II transformations play an important role. In this short research paper, we aim to establish the explicit expression of e? x/2 2F2 ...
Some properties of certain subclasses of meromorphic p-valent integral operators
(Işık University Press, 2014)
For meromorphic p-valent function of the form fi(z) = 1?? (z?w)p + ?? n=2 a i n(z?w)n, ? < 1, which are analytic in the punctured unit disk z : 0 < |z ?w| < 1 with a pole of order p at w, a class ?p ? (?1, ?2; ?) is ...
On a criterion for multivalent harmonic functions
(Işık University Press, 2014)
For normalized harmonic functions f(z) = h(z) + g(z) in the open unit disk, a criterion on the analytic part h(z) for f(z) to be p-valent and sense-preserving is discussed. Furthermore, several illustrative examples and ...
New sufficient conditions for starlike and convex functions
(Işık University Press, 2014)
Let A be the class of analytic functions f(z) in the open unit disc. Applying the subordination, some sufficient conditions for starlikeness and convexity are discussed.
Differential subordinations using ruscheweyh derivative and S?l?gean operator
(Işık University Press, 2014)
In the present paper we study the operator defined by using the Ruscheweyh derivative Rm f(z) and the S?l?gean operator Sm f(z), denoted Lm? : An ? An, Lm? f(z) = (1??)Rm f(z)+?Sm f(z), z ? U, where An = {f ? H(U) : f(z) ...
Harmonic mappings related to close-to-convex functions of complex order b
(Işık University Press, 2014)
Let CC(b) be the class of functions close-to-convex functions of order b, and let SH be the class of harmonic mappings in the plane. In the present paper we investigate harmonic mappings related to close-to-convex functions ...
Notes on certain harmonic starlike mappings
(Işık University Press, 2014)
Complex-valued harmonic functions that are univalent and sense-preserving in the unit disk D can be written in the form f = h + ¯g, where h and g are analytic in D. We give some inequalities for normalized harmonic functions ...
Certain class of harmonic mappings related to starlike functions
(Işık University Press, 2014)
Let S? be the class of starlike functions and let SH be the class of harmonic mappings in the plane. In this paper we investigate harmonic mapping related to the starlike functions.
A new look at q-hypergeometric functions
(Işık University Press, 2014)
For complex parameters ai, bj , q(i = 1, ..., r, j = 1, ..., s, bj ? C\{0, ?1, ?2, ...}, |q| < 1), define the q-hypergeometric function r?s(a1, ..., ar; b1, ..., bs; q, z) by r?s(ai; bj ; q, z) = ?? n=0 (a1, q)n...(ar, q)n ...
Some results on a subclass of harmonic mappings of order alpha
(Işık University Press, 2014-01)
Let SH be the class of harmonic mappings defined by SH = { f = h(z) + g(z)| h(z) = z + ?? n=2 anz?, g(z) = b1z + ?? n=2 bnz?, b1 < 1 } where h(z) and g(z) are analytic. Additionally f(z) ? SH(?) ? | zh? (z) ? zg?(z) h(z) ...