Semidefinite programming (msc 90C22), Nonconvex programming, global optimization (msc 90C26), Methods of relaxation type (msc 49M20)
Logistics (theme 3)
S.I.A.M.
SIAM Journal on Optimization
Semidefinite programming and combinatorial optimization
Networks and Optimization

Jibetean, D, & Laurent, M. (2005). Semidefinite approximations for global unconstrained polynomial optimization. SIAM Journal on Optimization, 16(2), 490–514.