Accessibility and system reduction of nonlinear time-delay control systemsBartosiewicz, Zbigniew; Kaldmäe, Arvo; Kawano, Yu; Kotta, Ülle; Pawluszewicz, Ewa; Simha, Ashutosh; Wyrwas, MałgorzataIEEE Transactions on Automatic Control2021 / p. 3781−3788 https://doi.org/10.1109/TAC.2020.3028566 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

Any dynamical system is fully accessible through one singleactuator and related problemsKawano, Yu; Kotta, Ülle; Moog, ClaudeInternational journal of robust and nonlinear control2016 / p. 1748-1754 http://dx.doi.org/10.1002/rnc.3379

On integrability of observable space for discrete-time polynomial control systemsKawano, Yu; Kotta, ÜlleIEEE transactions on automatic control2015 / p. 1987-1991 http://dx.doi.org/10.1109/TAC.2014.2365685

Polynomial accessibility condition for the multi-input multi-output nonlinear control systemKotta, Ülle; Tõnso, Maris; Kawano, YuProceedings of the Estonian Academy of Sciences2014 / p. 136-150 https://artiklid.elnet.ee/record=b2673962*est

Realizations in feedforward forms of nonlinear input-output equations with time-delaysKaldmäe, Arvo; Kawano, Yu; Kotta, ÜlleInternational journal of robust and nonlinear control2020 / p. 7560-7573 https://doi.org/10.1002/rnc.5194 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

Single-experiment observability decomposition of discrete-time analytic systemsKawano, Yu; Kotta, ÜlleSystems & control letters2016 / p. 193-199 http://dx.doi.org/10.1016/j.sysconle.2016.09.016