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X Zheng
Information about the author X Zheng will soon be added to the site.
Found
3 papers
in total
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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...
On reduction of duality gap in quadratic knapsack problems
2012
We investigate in this paper the duality gap between quadratic knapsack problem and...
On zero duality gap in nonconvex quadratic programming problems
2012
We present in this paper new sufficient conditions for verifying zero duality gap in...
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