A note on the article “A robust branch-and-cut approach for the minimum-energy symmetric network connectivity problem”

In the paper Li et al. [A robust branch-and-cut approach for the minimum-energy symmetric network connectivity problem. Omega 2012;40:210–7] it is claimed that a theoretical result appeared in Montemanni and Gambardella [Exact algorithms for the minimum power symmetric connectivity problem in wireless networks. Computers and Operations Research 2005;32:2891–904] is wrong. In this note we show that the original result is correct, and that the counter-example used to prove the wrongness of the original result is incorrect.