Jiawang Nie, James Demmel, Bernd Sturmfels. Minimizing Polynomials via Sum of Squares over the Gradient Ideal. Math. Program., 106(3):587-606, 2006. [doi]
@article{NieDS06,
title = {Minimizing Polynomials via Sum of Squares over the Gradient Ideal},
author = {Jiawang Nie and James Demmel and Bernd Sturmfels},
year = {2006},
doi = {10.1007/s10107-005-0672-6},
url = {http://dx.doi.org/10.1007/s10107-005-0672-6},
researchr = {https://researchr.org/publication/NieDS06},
cites = {0},
citedby = {0},
journal = {Math. Program.},
volume = {106},
number = {3},
pages = {587-606},
}