Vietnam Journal
of
MATHEMATICS

Volume 25, Number 1, 1997


1

Recent Work on Hyperbolic Spaces
Ha Huy Khoai

1

2

Spline Collocation Methods for Fredholm-Volterra Integro-Differential Equations of Higher Order
Nguyen Minh Chuong and Nguyen Van Tuan

15

3

Supernilpotent Radicals of ΓN-Rings
Dingguo Wang

25

4

The Bass-Papp Theorem and Some Related Results
A. Harmanci, P. F. Smith, A. Tercan, and Y. Tiras

33

5

Sufficent Conditions for the Existence of a Hamilton Cycle in Cubic (6, n)-Metacirculant Graphs
Ngo Dac Tan

41

6

Maximal Periodic Subgroups of Finite Dimensional Locally Compact Groups
Le Quoc Han

53

7

Approximately Continuous Functions in a Measure Space
B. K. Lahiri and S. Chakrabari

59

8

Extending Property for Finitely Generated Submodules

Le Van Thuyet and R. Wisbauer

65

9

Spherical Classes Detected by the Algebraic Transfer

Nguyen Huu Viet Hung

75