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ISSN: 0373-3505    frecuency : 4   format : Electrónica

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Volume 67 Number 2 Year 2012

15 articles in this issue 

Refaat Mohamed Salem

In this paper, we consider some properties of rings which are shared by the ring R and the ring T = (HR, s ) of skew Hurwitz series. In particular we show that:1) If R is a ring with char(R) = 0 and s is an R -automorphism such that s (e) = e and the left... see more

Pags. 15 - 25  

Arsham Borumand Saeid

By using vague sets we generalize the notion of convex sets and introduce the notion of (a, ß ,T )-convex vague sets and study their properties, where T is a triangular norm on [0, 1]. 

Pags. 27 - 37  

Shyam L. Kalla, Nina Virchenko, Iryna Alexsandrovich

This paper deals with a new generalization of analytical functions.The p-wave functions are introduced and studied. We consider their theoretical aspect and applications. Some integral representations of x^k y^l -wave functions (k, l - const. > 0), and... see more

Pags. 45 - 58  

Ali Muhammad, Amjad Ullah Khattak

In this paper, we obtain some interesting properties of differential subordination and superordination for the classes of symmetric functions analytic in the unit disc, by applying Noor integral operator. We investigate several sandwich theorems on the ba... see more

Pags. 77 - 92  

Qiliang Huang, Bicheng Yang, Lokenath Debnath

By introducing multi-parameters and conjugate exponents and using Euler-Maclaurin’s summation formula, we estimate the weight coefficient and prove a multiple more accurate Hardy-Littlewood-Polya (H-L-P) inequality, which is an extension of some earlier p... see more

Pags. 93 - 105  

Praveen Agarwal

A significantly large number of earlier works on the subject of fractional calculus give interesting account of the theory and applications of fractional calculus operators in many different areas of mathematical analysis (such as ordinary and partial dif... see more

Pags. 107 - 118  

Armend Shaban Shabani, Toufik Mansour

Recently were established q-analogues of some inequalities involving the gamma functions. In this paper are presented the (q1, . . . , qs)-analogues of those inequalities.

Pags. 119 - 130  

Naresh Berwal, Dinesh Panchal, C. L. Parihar

Wavelet transform and wavelet analysis are powerful mathematical tools for many problems. Wavelet also can be applied in numerical analysis. In this paper, we apply Haar wavelet method to solve wave-like equation with initial and boundary conditions known... see more

Pags. 157 - 167  

M. K. Aouf, A. O. Mostafa, A. A. Shamandy, A. K. Wagdy

In this paper, we introduce a new class of harmonic functions of complex order associated with convolution. We also derive the coefficient inequality, distortion theorem, extreme points, convolution conditions and convex combination for this class.

Pags. 169 - 183  

Sönke Rollenske, Wenfei Liu

We derive explicit equations for all two-dimensional, semi-log-canonical hypersurface singularities by an elemetary method.

Pags. 185 - 202  

Sheza El-Deeb, M. K. Aouf, R. M. El-Ashwah, A. Shamandy

In this paper, we define and investigate a subclass of univalent harmonic functions defined by Salagean integral operator with respect to symmetric points. We obtain coefficient conditions, extreme points, distortion bounds, convex combinations for this f... see more

Pags. 203 - 216  

Hemant Kumar, Mahmood A. Pathan, Priyanka Yadav

In this paper, we formulate an initial-value problem of generalized anomalous diffusion equation consisting second order in two dimensional space and fractional order in time derivatives and then solve it by applying a series involving bilinear Eigen func... see more

Pags. 217 - 229