Volume 59, Number 1, March 2014

S T U D I A

                UNIVERSITATIS BABEŞ-BOLYAI

                               MATHEMATICA

CONTENTS

George A. Anastassiou, Multivariate weighted fractional representation

formulae and Ostrowski type inequalities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Mehmet Zeki Sarikaya, Erhan Set and M. Emin Ozdemir, On some

integral inequalities for twice differentiable mappings . . . . . . . . . . . . . . . . . . . . . . . . . . .11

Rabha M. El-Ashwah, Mohammed K. Aouf and Alaa H. Hassan,

Fekete-Szego problem for a new class of analytic functions with complex

order de_ned by certain differential operator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Robert Szasz, Improvement of a result due to P.T. Mocanu . . . . . . . . . . . . . . . . . . . . . . 37

Sumit Nagpal and V. Ravichandran, A comprehensive class of harmonic

functions defined by convolution and its connection with integral

transforms and hypergeometric functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41

Zaineb HajSalem, Mohamed Ali Hammami and Mohamed Mabrouk, On the global

uniform asymptotic stability of time-varying dynamical systems . . . .. . . . . . . . . . . . . . 57

Prerna Maheshwari (Sharma) and Sangeeta Garg, Higher order

iterates of Szasz-Mirakyan-Baskakov operators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .69

Sorin G. Gal, Approximation with an arbitrary order by generalized

Szasz-Mirakjan operators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

Ilker Eryilmaz and Birsen Sagir Duyar, Some properties of Sobolev

algebras modelled on Lorentz spaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83

Alexandru-Darius Filip, A note on Zamfirescu's operators in Kasahara spaces . . . . . . . .. 93

Ioan A. Rus and Marcel-Adrian Serban, Some fixed point theorems

on cartesian product in terms of vectorial measures of noncompactness . . . . . . . . . . . . 103

Cristina Urs, Coupled fixed point theorems for mixed monotone operators

and applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113

Book reviews . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123