Anul XLVIII 2003

S T U D I A

UNIVERSITATIS BABEŞ-BOLYAI

MATHEMATICA

4

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

SUMAR – CONTENTS – SOMMAIRE

Teodora Cătinaş, Interpolating on Some Nodes of a Given Triangle . . . . . . . . . . . . .. . . 3

Cristian Chifu-Oros, Minimum Value of a Matrix Norm with Applications

to Maximum Principles for Second Order Elliptic Systems . . . . . . . . . . . . . . . . . . . . . . .9

Gh. Coman and Marius Birou, Bivariate spline-polynomial interpolation . . . . . . . . . . 17

Teodor Groşan and Şerban Rareş Pop, Free Convection Boundary Layer over

a Vertical Permeable Cone Embedded in a Fluid Saturated Porous Medium

with Internal Heat Generation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Amelia Anca Holhoş, Classes of Univalent Functions with Negative Coefficients. . . . 33

Vatan Karakaya and Necip Simsek, On Lacunary Invariant Sequence Spaces

Defined by a Sequence of Modulus Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Vasile Miheşan, The Gamma Approximating Operators . . . . . . . . . . . . . . . . . . . . . . . 49

Sorin Noaghi, Minimal Curves in Almost Minkowski Manifold . . . . . . . . . . . . . . . . . . .55

Georgia Irina Oros, On a Particular First Order Nonlinear Differential

Subordination II . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

Horiana Ovesea, Some Sufficient Conditions for Univalence . . . . . . . . . . . . . .. . . . . . . 65

Ioana Pop, Boole Lattices of Idempotents in a Ring . . . . . . . . . . . . . . . . . . . . . . . . .. . . 71

Dorian Popa, A Representation of p-Convex Set-Values Maps with Values in R .. . . . . 77

Ice B. Risteski, Kostadin G. Trencevski and Valery C. Covachev, On a Class

of Parametric Partial Linear Complex Vector Functional Equations . . . . . . . . . . . . . .83

Daniela Roşca, Algorithms for Approximation with Locally Supported

Rational Spline Prewavelets on the Sphere . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

Book Reviews . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111