On the attainability of an estimate of a number of Perron exponents for discrete linear diagonal systems with bounded coefficients. - Alexander Konyukh; Michal Niezabitowski (MMAR, 2015)

What types of functions may be the lower Bohl function of a diagonal discrete linear time-varying systems? - Artur Babiarz; Adam Czornik; Alexander Konyukh; Michal Niezabitowski (J. Frankl. Inst., 2017)

On Lyapunov and Upper Bohl Exponents of Diagonal Discrete Linear Time-Varying Systems. - Adam Czornik; Alexander Konyukh; Iryna Konyukh; Michal Niezabitowski; Justyna Orwat (IEEE Trans. Autom. Control., 2019)