Cilt:68 Sayı:02 (2019)
Permanent URI for this collection
Browse
Browsing Cilt:68 Sayı:02 (2019) by Subject "Analytic functions"
Now showing 1 - 4 of 4
Results Per Page
Sort Options
Item A new subclass of uniformly spirallike functions with fixed coefficients(Ankara Üniversitesi Fen Fakültesi, 2019-08-01) Balachandar, Geetha; Other; OtherIn this paper a new subclass of uniformly spirallike functions is defined and several properties like coefficient estimate, closure theorems, distortion theorems, radii of starlikeness and convexity are studied.Item Certain subclasses of bi-univalent functions related to k-Fibonacci numbers(Ankara Üniversitesi Fen Fakültesi, 2019-08-01) Güney, Özlem H.; Murugusundaramoorthy, G.; Sokol, Janusz; Other; OtherIn this paper, we introduce and investigate new subclasses of bi-univalent functions related to k-Fibonacci numbers. Furthermore, we nd estimates of first two coecients of functions in these classes. Also, we obtain the Fekete-Szego inequalities for these function classes.Item Coefficient bounds for a certain subclass of analytic and bi-univalent functions(Ankara Üniversitesi Fen Fakültesi, 2019-08-01) Mustafa, Nizami; Nezir, Veysel; Other; OtherIn this paper, we introduce and investigate a new subclass of the a-nalytic and bi-univalent functions in the open unit disk in the complex plane. For the functions belonging to this class, we obtain estimates on the first three coefficients in their Taylor-Maclaurin series expansion. Some interesting corollaries and applications of the results obtained here are also discussed.Item Coefficient estimates for a new subclass of m-fold symmetric analytic bi-univalent functions(Ankara Üniversitesi Fen Fakültesi, 2019-08-01) Bulut, Serap; Other; OtherConsidering a new subclass of m-fold symmetric analytic bi-univalent functions, we determine estimates the coefficient bounds for the Taylor-Maclaurin coefficients |a_{m+1}| and |a_{2m+1}| of the functions in this class. In certain cases, our estimates improve some of those existing coeffcient bounds.