Güncel Gönderiler: Dergiler / Journals
Toplam kayıt 1377, listelenen: 1301-1320
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On a new subclass of harmonic meromorphic functions wıth fixed residue ξ
(Işık University Press, 2014)We use the differential operator Dn,µλ,δ,φ to introduce a new class SHn,γ,β,ξ λ,δ,φ,µ (w, k, α) of meromorphic harmonic functions with fixed residue ξ in Uw. Then we give the coefficient estimates, distortion theorem and ... -
Approximate optimality conditions
(Işık University Press, 2014)We propose in this paper a systematic study which is a variational approach of approximate optimality conditions in terms of Ekeland’s variational principle and some of its applications. Using a generalised differentiati ... -
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 ... -
Sufficient conditions for generalized Sakaguchi type functions of order β
(Işık University Press, 2014)In this paper, we obtain some sufficient conditions for generalized Sakaguchi type function of order β, defined on the open unit disk. Many interesting outcomes of our results are also calculated. -
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. -
Free surface flow over a triangular depression
(Işık University Press, 2014)Two-dimensional steady free-surface flows over an obstacle is considered. The fluid is assumed to be inviscid, incompressible and the flow is irrotational. Both gravity and surface tension are included in the dynamic ... -
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 ... -
Extensions for certain subordination relations
(Işık University Press, 2014)For some complex number ? which has a positive real part, a certain subordination relation concerned with the Bernardi integral operator I? was proven by D. J. Hallenbeck and St. Ruscheweyh (Proc. Amer. Math. Soc. 52(1975), ... -
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 ... -
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 ... -
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, 2014-01)In the present paper we study the operator defined by using the Ruscheweyh derivative Rmf(z) and the Sălăgean operator Smf(z), denoted Lmα : An → An, Lmα f(z) = (1−α)Rmf(z)+αSmf(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 ... -
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. -
Solvability the telegraph equation with purely integral conditions
(Işık University Press, 2013)In this paper a numerical technique is developed for the one-dimensional telegraph equation. We prove the existence, uniqueness, and continuous dependence upon the data of solution to a telegraph equation with purely ... -
A numerical solution of the modified regularized long wave (MRLW) equation using quartic B-splines
(Işık University Press, 2013-09-18)In this paper, a numerical solution of the modified regularized long wave (MRLW) equation is obtained by subdomain finite element method using quartic B-spline functions. Solitary wave motion, interaction of two and three ... -
A real-time virtual sculpting application with a haptic device
(Işık University Press, 2013-08-09)In this paper, a 3D virtual sculpting application is developed for 3D virtual models with removing or adding materials by using Boolean operations. Virtual sculpting simulation reads 3D virtual models in a variety of file ... -
On parallel surfaces in minkowski 3-space
(Işık University Press, 2013-07-09)In this paper, we study on some properties of parallel surfaces in Minkowski 3-space. The results given in this paper were given in Euclidean space by [7, 8]. By using these two former studies, we show these properties in ... -
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 ... -
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 ...
