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Toplam kayıt 34, listelenen: 1-10
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.
Estimating coefficients for subclasses of meromorphic bi-univalent functions associated with linear operator
(Işık University Press, 2014)
In this paper we define a differential linear operator, applying it on the subclasses HΣ∗B (α, n, λ) of meromorphic starlike bi-univalent functions of order α, and HΣ˜ ∗B (α, n, λ) of meromorphic strongly starlike bi-univalent ...
Differential subordinations using ruscheweyh derivative and Sălăgean operator
(Işık University Press, 2014)
In the present paper we study the operator defined by using the Ruscheweyh derivative Rm f(z) and the Sălăgean operator Sm f(z), denoted Lmα : An → An, Lmα f(z) = (1−α)Rm f(z)+αSm 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 ...
On certain classes of univalent meromorphic functions associated with integral operators
(Işık University Press, 2014)
This paper illustrates how some inclusion relationships of certain class of univalent meromorphic functions may be defined by using the linear operator. Further, a property preserving integrals is considered for the final ...
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 ...
Extensions for certain subordination relations
(Işık University Press, 2014)
For some complex number γ which has a positive real part, a certain subordination relation concerned with the Bernardi integral operator Iγ was proven by D. J. Hallenbeck and St. Ruscheweyh (Proc. Amer. Math. Soc. 52(1975), ...
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 rΦs(a1, ..., ar; b1, ..., bs; q, z) by rΦs(ai; bj ; q, z) = ∑∞ n=0 (a1, q)n...(ar, q)n ...
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−α (z−w)p + ∑∞ n=2 a i n(z−w)n, α < 1, which are analytic in the punctured unit disk z : 0 < |z −w| < 1 with a pole of order p at w, a class Γp β (ζ1, ζ2; γ) 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 ...