Qin Ni, Liqun Qi, Fei Wang. An Eigenvalue Method for Testing Positive Definiteness of a Multivariate Form. IEEE Trans. Automat. Contr., 53(5):1096-1107, 2008. [doi]
@article{NiQW08,
title = {An Eigenvalue Method for Testing Positive Definiteness of a Multivariate Form},
author = {Qin Ni and Liqun Qi and Fei Wang},
year = {2008},
doi = {10.1109/TAC.2008.923679},
url = {http://dx.doi.org/10.1109/TAC.2008.923679},
researchr = {https://researchr.org/publication/NiQW08},
cites = {0},
citedby = {0},
journal = {IEEE Trans. Automat. Contr.},
volume = {53},
number = {5},
pages = {1096-1107},
}