Vietnam Journal
of
MATHEMATICS

Volume 27, Number 2, 1999

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11	Explicit Global Lipschitz Solutions to First-Order, Nonlinear Partial Differential Equation Tran Duc Van, Nguyen Hoang, and Nguyen Duy Thai Son	93
12	On Matheron Theorem for Non-Locally Compact Metric Spaces Nguyen Nhuy and Vu Hong Thanh	115
13	On a Positive Bounded Solution of the n-Competing Species Problem Le Hong Lan and Tran Van Nhung	131
14	A Property of Entire Functions of Exponential Type Hoang Mai Le	139
15	Clifford Semilattice Decompositions of Stratified Normal Bands of Monoids Yonglin Cao	145
16	Stability of Linear Infinite-Dimensional Systems Under Affine and Fractional Perturbations Nguyen Khoa Son and Pham Huu Anh Ngoc	153
17	Exact Penalty in D.C. Programming Le Thi Hoai An, Pham Dinh Tao, and Le Dung Muu	169
18	Some Geometrical Properties of the Spectrum of Functions of Orlicz Type Truong Van Thuong	179
19	On Common Fixed Points for Three Commuting Mappings Tran Thi Lan Anh	183