Sayed, Ali H.Hassibi, BabakKailath, Thomas2018-01-162018-01-162018-01-16199610.1007/978-3-0348-9035-9_15https://infoscience.epfl.ch/handle/20.500.14299/144168Inertia Conditions for the Minimization of Quadratic Forms in Indefinite Metric Spacestext::book/monograph::book part or chapter