ORCID "Aktas, Ibrahim / 0000-0003-4570-4485" için listeleme
-
Bounds for Radii of Starlikeness of Some q-Bessel Functions
Aktas, Ibrahim; Baricz, Arpad (Springer Basel Ag, 2017)In this paper the radii of starlikeness of Jackson's second and third q-Bessel functions are considered and for each of them three different normalization are applied. By applying Euler-Rayleigh inequalities for the first ... -
BOUNDS FOR THE RADII OF UNIVALENCE OF SOME SPECIAL FUNCTIONS
Aktas, Ibrahim; Baricz, Arpad; Yagmur, Nihat (Element, 2017)Tight lower and upper bounds for the radii of univalence (and starlikeness) of some normalized Bessel, Struve and Lommel functions of the first kind are obtained via Euler-Rayleigh inequalities. It is shown also that the ... -
Geometric and monotonic properties of hyper-Bessel functions
Aktas, Ibrahim; Baricz, Arpad; Singh, Sanjeev (Springer, 2020)Some geometric properties of a normalized hyper-Bessel functions are investigated. Especially we focus on the radii of starlikeness, convexity, and uniform convexity of hyper-Bessel functions and we show that the obtained ... -
ON PARTIAL SUMS OF NORMALIZED q-BESSEL FUNCTIONS
Artas, Ibrahim; Orhan, Halit (Korean Mathematical Soc, 2018)In the present investigation our main aim is to give lower bounds for the ratio of some normalized q-Bessel functions and their sequences of partial sums. Especially, we consider Jackson's second and third q-Bessel functions ... -
ON SOME PROPERTIES OF HYPER-BESSEL AND RELATED FUNCTIONS
Aktas, I (Turkic World Mathematical Soc, 2019)In this study, by using the Hadamard product representation of the hyperBessel function and basic concepts in mathematics we investigate the sign of the hyperBessel function x -> J alpha(d) (x) on some sets. Also, we show ... -
Radii of uniform convexity of some special functions
Aktas, Ibrahim; Toklu, Evrim; Orhan, Halit (Scientific Technical Research Council Turkey-Tubitak, 2018)In this investigation our main aim is to determine the radii of uniform convexity of selected normalized q-Bessel and Wright functions. Here we consider six different normalized forms of q-Bessel functions and we apply ...