@misc{HelmbergRendlWeismantel1996, author = {Helmberg, Christoph and Rendl, Franz and Weismantel, Robert}, title = {A Semidefinite Programming Approach to the Quadratic Knapsack Problem}, url = {http://nbn-resolving.de/urn:nbn:de:0297-zib-2211}, number = {SC-96-10}, year = {1996}, abstract = {We investigate dominance relations between basic semidefinite relaxations and classes of cuts. We show that simple semidefinite relaxations are tighter than corresponding linear relaxations even in case of linear cost functions. Numerical results are presented illustrating the quality of these relaxations.}, language = {en} }