Anul XLIX 2004

S T U D I A

UNIVERSITATIS BABEŞ-BOLYAI

MATHEMATICA

2

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

SUMAR – CONTENTS – SOMMAIRE

Guojun Liao, Jianzhong Su, Zhong Lei, Gary C. de la Pena and Dale Anderson,

A Moving Finite Difference Method for Partial Differential Equations . . . . . . . . . . . . . 3

Amelia Anca Holhos, On some Classes of Univalent Functions with

Negative Coefficients . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37

Doina Ionac and Stefan Tigan, On some Properties of the Starlike Sets and

Generalized Convex Functions. Application to the Mathematical

Programming with Disjunctive Constraints . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . 53

Vasile Miheşan, The Beta Approximating Operators of First Kind . . . . . . . . . . . . . . . .65

Vasile Miheşan, The Beta Approximating Operators of Second Kind . . . . . . . . . . . . . 79

Cristinel Mortici, Orthogonal Basis in Sobolev Space (a, b) . . . . . . . . . . . . . .. . . 89

Virgil Pescar, Simple Sufficient Conditions for Univalence . . . . . . . . . . . . . . . . . . . . . 95

Ho Dang Phuc, The Problem of B. V. Gnedenko for Partial Summation

Schemes on Banach Space . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

Book Reviews . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . 113