Fréchet-valued analytic functions and linear topological invariants. Nguyen Van Dong; Nguyen Thai Son — 1998 Portugaliae Mathematica
Noguchi-type convergence-extension theorems for (n,d)-sets Do Duc Thai; Nguyen Thi Tuyet Mai; Nguyen Thai Son — 2003 Annales Polonici Mathematici We introduce the notion of (n,d)-sets and show several Noguchi-type convergence-extension theorems for (n,d)-sets.
On some differential inequalities and the uniqueness of global semiclassical solutions to the Cauchy problem for weakly-coupled systems. Tran Duc Van; Le Van Hap; Nguyen Duy Thai Son — 1998 Journal of Inequalities and Applications [electronic only]