On the input energy for state reachability of linear systems with packet losses
A. Sanand Amita Dilip, Nikolaos Athanasopoulos and Raphaël M. Jungers
Membership problem in GL(2,Z) extended by singular matrices.
I. Potapov and P. Semukhin
On the Identity Problem for the Special Linear Group and the Heisenberg Group
Sang-Ki Ko, Reino Niskanen, Igor Potapov
The 2CNF Boolean Formula Satisfiability Problem and the Linear Space Hypothesis
Tomoyuki Yamakami