Anul XLVI 2001

S T U D I A

UNIVERSITATIS BABEŞ-BOLYAI

MATHEMATICA

3

Redacţia: 400084 Cluj-Napoca, Str. M. Kogălniceanu nr. 1 Tel: 405300

SUMAR – CONTENTS – SOMMAIRE

M.K. Aouf and A.Y. Lashin, On a Certain Families of Analytic Functions

with Negative Coefficients . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Rodica Covaci, Projections with Respect to Some Special Schunck Classes. . . . .. . . . .21

Septimiu Crivei, A Note on τ -Quasi-Injective Modules. . . . . . . . . . . . . . . . . . . . . . . . . 33

T. Groşan and I. Pop, A Diffusion Problem in a Circular Domain in a Porous

Layer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

J. Kolumban and A. Soos, Invariant Sets of Random Variables in Complete

Metric Spaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Vasile Lazar, M-Linear Connection on the Second Order Reonom Bundle. . . . . . . . . . 67

Cornel Pintea, A Formula for the Mean Curvature of an Implicit Regular

Surface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

Dorina Răducanu, First Order Differential Subordinations and Inequalities

in a Banach Space. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83

Christian Săcărea, A Note on Standard Topological Contexts with

Pseudometric . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

R.C. Sharma, Kelvin-Helmholtz, Instability of Rivlin-Ericksen Viscoelastic

Fluid in Porous Medium . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . 111

Book Reviews. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .119