Vietnam Journal
of
MATHEMATICS

Volume 27, Number 1, 1999


1

An Eigenvalue Problem with Singularity for Fourth Order Ordinary Differential Equation
Ta Van Dinh

1

2

On the Sample Continuity of Random Mappings
Dang Hung Thang

7

3

Some Extensions of Berliocchi-Lasry Theorem and Extremum Principles for Classes of Mathematical Programming Problems
Erik J. Balder and Nguyen Dinh

23

4

Stable Integral Currents in Riemannian Manifolds with Positive Sectional Curvature
Xue-Shan Zhang

33

5

Left N-Coherent Dimension of Rings
Zhongkui Liu

41

6

On Zahariuta's Extremal Function for Harmonic Functions
Jean-Marc Hécart

51

7

A Nonlinear Integral Equation of Gravimetry: Uniquenessa nd Approximation by Linear Moments
Dang Dinh Ang, Nguyen Van Nhan and Dinh Ngoc Thanh

61

8

Majorized Powers of an Operator, Discrete Orbits and Hyperinvariant Subspaces
Ralph delaubenfels and Vu Quoc Phong

69

9

Structure of Space of Germs of Holomorphic Functions and Hartogs Type Theorem
Dang Dinh Lan

85

10

On the First Occurrence of lrreducible Modular Representations of Semigroups of all Matrices
Ton That Tri

89