Anthony Man-Cho So, Jiawei Zhang, Yinyu Ye. On Approximating Complex Quadratic Optimization Problems via Semidefinite Programming Relaxations. In Michael Jünger, Volker Kaibel, editors, Integer Programming and Combinatorial Optimization, 11th International IPCO Conference, Berlin, Germany, June 8-10, 2005, Proceedings. Volume 3509 of Lecture Notes in Computer Science, pages 125-135, Springer, 2005. [doi]
Abstract is missing.