Vietnam Journal
of
MATHEMATICS
Vol. 30, Number 1, 2002

Persistence in a Model of Predator-Prey Population Dynamics with the Action of a Parasite in Almost Periodic Environment
Tran Thi Loan and Trinh Tuan Anh
1
On a Perturbed Boundary Optimal Control System
Mohamed Akkouchi
15
On a Class of Locally Supersoluble Groups
Edmundo R. Perez, Jr.
25
On Eventually and Asymptotically Lipschitzian Mappings
Do Hong Tan and Ha Duc Vuong
31
p-Adic Poisson-Jensen Formula in Several Variables
Vu Hoai An
43
New Lagrange Multipliers Rules for Constrained Quasidifferentiable Optimization
Yan Gao
55
Iterative Method for Solving a Boundary Value Problem for Triharmonic Equation
Dang Quang A
71
A Stable Marching Difference Scheme for an Ill-Posed Cauchy Problem for the Three-Dimensional Laplace Equation 
Pham Minh Hien
79
Fractal Langevin Equation
Tran Hung Thao and Tran Trong Nguyen
89
Homotopy of Configuration Spaces
Nguyen Viet Dung
97