The following publications are possibly variants of this publication:
- On common quadratic Lyapunov functions for pairs of stable LTI systems whose system matrices are in companion formRobert N. Shorten, Kumpati S. Narendra. tac, 48(4):618-621, 2003. [doi]
- Necessary and sufficient conditions for the existence of a common quadratic Lyapunov function for M stable second order linear time-invariant systemsRobert N. Shorten, Kumpati S. Narendra. amcc 2000: 359-363 [doi]
- A result on the existence of common quadratic Lyapunov functions for pairs of stable discrete-time LTI systemsOliver Mason, Robert Shorten. amcc 2003: 4471-4475 [doi]
- A singularity test for the existence of common quadratic Lyapunov functions for pairs of stable LTI systemsChristopher K. King, Robert Shorten. amcc 2004: 3881-3884 [doi]
- A common Lyapunov function for stable LTI systems with commuting A-matricesKumpati S. Narendra, Jeyendran Balakrishnan. tac, 39(12):2469-2471, 1994. [doi]
- On the existence of a common quadratic Lyapunov function for two stable second order LTI discrete-time systemsMehmet Akar, Kumpati S. Narendra. amcc 2001: 2572-2577 [doi]