Sun X

X Sun

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Found 6 papers in total
Convex relaxations and MIQCQP reformulations for a class of cardinality‐constrained portfolio selection problems
Convex relaxations and MIQCQP reformulations for a class of cardinality‐constrained portfolio selection problems
2013
In this paper we investigate a class of cardinality‐constrained portfolio...
Duality and Farkas‐type results for extended Ky Fan inequalities with DC functions
Duality and Farkas‐type results for extended Ky Fan inequalities with DC functions
2013
In this paper, we deal with extended Ky Fan inequalities (EKFI) with DC functions....
On reduction of duality gap in quadratic knapsack problems
On reduction of duality gap in quadratic knapsack problems
2012
We investigate in this paper the duality gap between quadratic knapsack problem and...
An exact solution method for unconstrained quadratic 0–1 programming: a geometric approach
An exact solution method for unconstrained quadratic 0–1 programming: a geometric approach
2012
We explore in this paper certain rich geometric properties hidden behind quadratic...
On zero duality gap in nonconvex quadratic programming problems
On zero duality gap in nonconvex quadratic programming problems
2012
We present in this paper new sufficient conditions for verifying zero duality gap in...
On duality gap in binary quadratic programming
On duality gap in binary quadratic programming
2012
We investigate in this paper the duality gap between the binary quadratic optimization...
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