Anul LII 2007

 

S T U D I A

UNIVERSITATIS BABEŞ-BOLYAI

 

 

MATHEMATICA

1

 

 

 

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

 

 

 

SUMAR CONTENTS SOMMAIRE

 

 

Mohamed Achache, On the Approximation Numbers of Certain Volterra

Integral Operators between Lebesgue Spaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

 

George A. Anastassiou, Optimal Multivariate Ostrowski Euler Type

Inequalities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

 

Razvan V. Gabor, Boundary Value Problems for Systems of Second Order

Differential Equations of Mixed Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 63

 

Ilie Mitran, On some Numeric Methods to Determinate the Guaranteed

Optimal Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

 

Ovidiu T. Pop, On the Approximation by Associated GBS Operators of

Exponential Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..99

 

Monica Purcaru and Mirela Tarnoveanu, On the Transformations of

N-Linear Connections in the k-Osculator Bundle . . . . . . . . . . . . . . . . . . . . . ... 111

 

Natalia Rosca, A Combined Monte Carlo and Quasi-Monte Carlo Method

for Estimating Multidimensional Integrals . . . . . . . . . . . . . . . . . . . . . . . . . . . ... . ..125

 

Somogyi Ildiko, Practical Quadrature Formulas Optimal from Efficiency

Point of View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 141

 

Book Reviews . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . 149