BOUNDS FOR THE RADII OF UNIVALENCE OF SOME SPECIAL FUNCTIONS
Erişim
info:eu-repo/semantics/openAccessTarih
2017Erişim
info:eu-repo/semantics/openAccessÜst veri
Tüm öğe kaydını gösterÖzet
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 radius of univalence of the Struve functions is greater than the corresponding radius of univalence of Bessel functions. Moreover, by using the idea of Kreyszig and Todd, and Wilf it is proved that the radii of univalence of some normalized Struve and Lommel functions are exactly the radii of starlikeness of the same functions, and they are actually solutions of some functional equations. The Laguerre-Polya class of entire functions plays an important role in our study.
Cilt
20Sayı
3Koleksiyonlar
İlgili Öğeler
Başlık, yazar, küratör ve konuya göre gösterilen ilgili öğeler.
-
Finite difference approximations of first order derivatives of complex valued functions
Ashyralyyev, Charyyar; Ozturk, Beyza (2018)[Abstract Not Available] -
Some approximations of second order derivatives complex-valued functions
Ashyralyyev, Ch; Ozturk, B. (Karaganda State Univ, 2018)In this paper, we generalize the well known finite difference method to compute derivatives of real valued function to approximate of second order complex derivatives w(zz) and w((zz) over bar) for complex-valued function ... -
Effect of pH on Protein Extraction from Mahaleb Kernels and Functional Properties of Resulting Protein Concentrate
Guzel, Melih; Celik, Mehtap; Yildirim, Metin (Walter De Gruyter Gmbh, 2019)The aims of this research were to examine the effect of pH on extraction of proteins from mahaleb (Prunus mahaleb L.) kernels, and to investigate the functional properties of resulting protein concentrate. The optimum pH ...