Volume 56, Number 1, March 2011

S T U D I A

                UNIVERSITATIS BABEŞ-BOLYAI

                               MATHEMATICA

SUMAR - CONTENTS - SOMMAIRE

ALGEBRA

Rodica Covaci, Generalized Projectors and the Saturated Closure

of a π-Homomorph of Finite π -Solvable Groups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Kazem Khashyarmanesh and Fahimeh Khosh-Ahang Ghasr, On the Extension and

Torsion Functors of Local Cohomology of Weakly Laskerian and Matlis Reflexive Modules . . . . . . 15

MATHEMATICAL ANALYSIS

Elsayed M. Mohamed Elsayed, Behavior of a Rational Recursive Sequences . . . . . . . . . . . . . . . . . 27

Ilker Eryilmaz and Cenap Duyar, On Alip p,q(G) Spaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Iuliana Marchis, Asymptotic Behavior of the Solution of Nonlinear Parametric

Variational Inequalities in Notched Beams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51

Nagarajan Subramanian and Umakanta Misra, The Generalized Semi-Normed Difference

of Double Gai Sequence Spaces Defined by a Modulus Function . . . . . . . . . . . . . . . . . . . . . . . . . . 63

Tunde Zsuzsanna Szasz, Vanishing Viscosity Method for Quasilinear

Variational Inequalities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75

GEOMETRY

Ildiko-Ilona Mezei, Metric Relations on Mountain Slopes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

Mircea Neagu, Jet Geometrical Objects Produced by Linear ODEs Systems

and Superior Order ODEs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

Laurian-Ioan Piscoran and Catalin Barbu, Pappus׳s Harmonic Theorem in the Einstein

Relativistic Velocity Model of Hyperbolic Geometry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101

COMPLEX ANALYSIS

Mohamed K. Aouf, The Salagean Integral Operator and Strongly Starlike Functions . . . . . . . . . . . . 109

Serap Bulut, The Extensions for the Univalence Conditions of Certain General Integral Operators . . 117

Maslina Darus and Rabha W. Ibrahim, On a Differential Operator for Multivalent Functions . . ... . . 125

APPLIED MATHEMATICS

Nguyen Huu Bao, On the Stability of the Bivariate Geometric Composed

Distribution׳s Characterization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135

Nguyen Tien Dung, Fractional Stochastic Differential Equations: A Semimartingale Approach . . .. . .141

Adriana Petre, On Uniform Exponential Stability of Backwards Evolutionary Processes . . . . . . . . . 157

Marwan Taiseer Alquran, Kamel Al-Khaled and Ameen Alawneh, Simulated Results

for Deterministic Model of HIV Dynamics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165

Elena-Maria Ului, Boundary Integral Equations for the Problem of 2D Brinkman

Flow Past Several Voids . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .179