12 articles in this issue
Mohamed Kamal Aouf, Adela O. Mostafa, Eman Ahmed Adwan
In this paper, we introduce a new class H_{T}(f,g;\alpha ,k) of analytic functions in the open unit disc U={z\in \mathbb{C}: left\vert z \right\vert <1} defined by convolution. The object of the present paper is to determine coefficient estimates, extr... see more
Dharmendra Kumar Singh
The present paper aims at the derivation of fractional calculus formulae for the \overline{H}-function due to Inayat-Hussain by the application of fractional calculus formulae due to Saigo and Meada involving a general class of polynomial S_n^{a,b,t} (.).
Huseyin Irmak
Saurabh Porwal
The purpose of the present paper is to study the integral operator of the form\int_{0}^{z}\left\{\frac{D^nf(t)}{t}\right\}^{\delta}dt where f belongs to the subclass C(n,\alpha,\beta) and \delta is a real number. We obtain integral characterization for th... see more
Nikos Katzourakis, Juan Manfredi
In this note we give three counter-examples which show that the Maximum Principle generally fails for classical solutions of a system and a single equation related to the \infty-Laplacian. The first is the tangential part of the \infty-Laplace system and ... see more
Sahsene Altinkaya, Sibel Yalcin
In the present investigation, we introduce and investigate a new subclass of the function class ? of bi-univalent functions defined in the open unit disc. We find estimates on the coefficients |a2| and |a3| for functions in the function class S?(n, h... see more
Saurabh Porwal, K. Vijaya, M. Kasthuri
The purpose of the present paper is to establish connections between various subclasses of harmonic univalent functions by applying certain convolution operator involving generalized Bessel functions of first kind. To be more precise, we investigate such ... see more
Making use of the Hankel determinant, in this work, we consider a general subclass of bi-univalent functions. Moreover, we investigate the bounds of initial coefficients of this class.
Tugba Yavuz
In this paper, we determine coeffcient bounds for functions in certain suclasses of close-to-convex functions, which are introduced here by means of the non-homogeneous Cauchy-Euler equation of order m. Also, we give some corollaries as special cases.
Süleyman Ediz
Reduced second Zagreb index has been defined recently. In this paper we characterized extremal bicyclic graphs with pendent vertices with respect to this novel index.
Dante DeBlassie, Robert G. Smits
We estimate the p-harmonic measure of a small spherical cap.
Silvestru Sever Dragomir
Some bounds for the Cebyšev functional of a differentiable function whose derivative is h or ?-convex in absolute value and applications for functions of selfadjoint operators in Hilbert spaces via the spectral representation theorem are given.