1 citations · 1 across the 2 of their papers we have counts for
4 papers
Convex Analysis of Minimal Time and Signed Minimal Time Functions
Dang Van Cuong, Boris Mordukhovich, Nguyen Mau Nam +1
In this paper we first consider the class of minimal time functions in the general setting of locally convex topological vector (LCTV) spaces. The results obtained in this framewor…
Extremal Systems of Convex Sets with Applications to Convex Calculus in Vector Spaces
Dang Van Cuong, Boris Mordukhovich, Nguyen Mau Nam
In this paper we introduce and study the concept of set extremality for systems of convex sets in vector spaces without topological structures. Characterizations of the extremal sy…
The Bi-normal fields on spacelike surfaces in
Dang Van Cuong
A normal field on a spacelike surface in is called bi-normal if , the determinant of Weingarten map associated with , is zero. In this paper we give a relationship…
-valued Gauss maps and umbilic spacelike surfaces of codimension two
Dang Van Cuong, Doan The Hieu
To study spacelike surfaces of codimension two in the Lorentz-Minkowski space we construct a pair of maps whose values are in $HS_r:=H_+^n(\textbf v,1)\cap \{x_{n…