The following publications are possibly variants of this publication:
- On positive realness, negative imaginariness, and H∞ control of state-space symmetric systemsMei Liu, James Lam, Bohao Zhu, Ka Wai Kwok. automatica, 101:190-196, 2019. [doi]
- On positive realness and negative imaginariness of uncertain discrete-time state-space symmetric systemsMei Liu, James Lam, Bohao Zhu, Xingjian Jing. ijsysc, 51(8):1406-1417, 2020. [doi]
- Robust performance synthesis for systems with positive-real uncertainty and an extension to the negative-imaginary caseKang-Zhi Liu, Masao Ono, Xiaoli Li, Min Wu. automatica, 82:194-201, 2017. [doi]