Yang X.Q.

X.Q. Yang

Information about the author X.Q. Yang will soon be added to the site.
Found 26 papers in total
Vector complementarity problems with a variable ordering relation
Vector complementarity problems with a variable ordering relation
2007
In this paper, we investigate vector complementarity problems with a variable ordering...
A unified augmented Lagrangian approach to duality and exact penalization
A unified augmented Lagrangian approach to duality and exact penalization
2003
In this paper, the existence of an optimal path and its convergence to the optimal set...
A relaxed cutting plane method for semi-infinite semi-definite programming
A relaxed cutting plane method for semi-infinite semi-definite programming
2006
In this paper, we develop two discretization algorithms with a cutting plane scheme...
Converse duality in nonlinear programming with cone constraints
Converse duality in nonlinear programming with cone constraints
2006
The purpose of this paper is to establish various converse duality results for...
Multiobjective second-order symmetric duality with F-convexity
Multiobjective second-order symmetric duality with F-convexity
2005
We suggest a pair of second-order symmetric dual programs in multiobjective nonlinear...
Augmented Lagrangian function, non-quadratic growth condition and exact penalization
Augmented Lagrangian function, non-quadratic growth condition and exact penalization
2006
In this paper, under the assumption that the perturbation function satisfies a growth...
Criteria for generalized invex monotonicities
Criteria for generalized invex monotonicities
2005
In this paper, under appropriate conditions, we establish that (i) if the gradient of...
Second order symmetric duality in non-differentiable multiobjective programming with F-convexity
Second order symmetric duality in non-differentiable multiobjective programming with F-convexity
2005
This paper is concerned with a pair of Mond–Weir type second order symmetric...
Second-order duality for nonlinear programming
Second-order duality for nonlinear programming
2004
Four second-order dual models for nonlinear programming are introduced and their...
Unified approaches for solvable and unsolvable linear complementarity problems
Unified approaches for solvable and unsolvable linear complementarity problems
2004
In this paper, general linear complementarity problems (LCPs) are studied via global...
Some results about duality and exact penalization
Some results about duality and exact penalization
2004
In this paper, we introduce the concept of the “valley at 0” augmenting...
Minimax portfolio optimization: empirical numerical study
Minimax portfolio optimization: empirical numerical study
2004
In this paper, we carry out the empirical numerical study of the l ∞ portfolio...
The zero duality gap property and lower semicontinuity of the perturbation function
The zero duality gap property and lower semicontinuity of the perturbation function
2002
We examine the validity of the zero duality gap properties for two important dual...
On the conversion of optimization problems with max–min constraints to standard optimization problems
On the conversion of optimization problems with max–min constraints to standard optimization problems
2001
In this note, we obtain a sufficient and necessary condition for a point to be a local...
Nonlinear Lagrangian functions and applications to semi-infinite programs
Nonlinear Lagrangian functions and applications to semi-infinite programs
2001
In this paper a nonlinear penalty method via a nonlinear Lagrangian function is...
Portfolio selection problem with minimax type risk function
Portfolio selection problem with minimax type risk function
2001
The investor's preference in risk estimation of portfolio selection problems is...
Computational discretization algorithms for functional inequality constrained optimization
Computational discretization algorithms for functional inequality constrained optimization
2000
In this paper, a functional inequality constrained optimization problem is studied...
Nonlinear Lagrangian theory for nonconvex optimization
Nonlinear Lagrangian theory for nonconvex optimization
2001
The Lagrangian function in the conventional theory for solving constrained...
Approximation methods for non-convex curves
Approximation methods for non-convex curves
1999
Based on the triangle sandwich and block sandwich methods, two approximation methods...
Vector equilibrium problem and vector optimization
Vector equilibrium problem and vector optimization
1999
This paper examines the vector equilibrium model based on a vector cost consideration....
Vector network equilibrium problems and nonlinear scalarization methods
Vector network equilibrium problems and nonlinear scalarization methods
1999
The conventional equilibrium problem found in many economics and network models is...
The gap function of a convex multicriteria optimization problem
The gap function of a convex multicriteria optimization problem
1998
We generalize the concept of a gap function previously defined for a convex (scalar)...
Second-order global optimality conditions for convex composite optimization
Second-order global optimality conditions for convex composite optimization
1998
In recent years second-order sufficient conditions of an isolated local minimizer for...
A method for convex curve approximation
A method for convex curve approximation
1997
In this paper, a new sandwich method is introduced to approximate a convex curve in R...
Papers per page: