Decomposition-based Method for Sparse Semidefinite Relaxations of Polynomial Optimization Problems 2010 (1) PM Kleniati, P Parpas, B Rustem, Decomposition-based Method for Sparse Semidefinite Relaxations of Polynomial Optimization Problems, JOURNAL OF OPTIMIZATION THEORY AND APPLICATIONS, volume 145, issue 2, pp.289–310, 2010