Vietnam Journal
of
MATHEMATICS

Volume 28, Number 3, 2000


21

A Survey of Associated and Coassociated Primes
Siamak Yassemi

195

22

On an Infinite Hierarchy of Petri Net languages
Pham Tra An and Pham Van Thao

209

23

Bisection Search Algorithm for Optimizing Over the Efficient Set
Thai Quynh Phong and Hoang Quang Tuyen

217

24

Sufficient Optimality Conditions Under Invexity Hypotheses
Do Van Luu and Pham Trung Kien

227

25

Existence and Stabilization of a Degenerate Equation with Nonlinear Boundary Conditions
M. M. Cavalcanti, V. N. Domingos Cavalcanti, and J. S. Prates Filho

237

26

An Iteration Scheme for Nonexpansive Mappings in Metric Spaces of Hyperbolic Type
Nguyen Minh Chuong and Nguyen van Co

257

27

Matrix Transformations of Generalized Holomorphic Dirichlet Series in a Bounded p-Convex Domain
Trinh Dao Chien

263

28

Invariant Property of Roughly Contractive Mappings
Hoang Xuan Phu and Tran Van Truong

275

29

On Representable Linearly Compact Modules
Nguyen Tu Cuong and Le Thanh Nhan

291