David J. Clements, Harald K. Wimmer. Monotonicity of the optimal cost in the discrete-time regulator problem and Schur complements. Automatica, 37(11):1779-1786, 2001. [doi]
@article{ClementsW01,
title = {Monotonicity of the optimal cost in the discrete-time regulator problem and Schur complements},
author = {David J. Clements and Harald K. Wimmer},
year = {2001},
doi = {10.1016/S0005-1098(01)00147-9},
url = {http://dx.doi.org/10.1016/S0005-1098(01)00147-9},
researchr = {https://researchr.org/publication/ClementsW01},
cites = {0},
citedby = {0},
journal = {Automatica},
volume = {37},
number = {11},
pages = {1779-1786},
}