• 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 https://www.scopus.com/sourceid/17339 https://www.scopus.com/record/display.uri?eid=2-s2.0-85111748229&origin=inward&txGid=619909cb4363e201acb564769b2a8e06 https://jcr.clarivate.com/jcr-jp/journal-profile?journal=IEEE%20T%20AUTOMAT%20CONTR&year=2022 https://www.webofscience.com/wos/woscc/full-record/WOS:000678334500033
• Algebraic formalism of differential one-forms for nonlinear control systems on time scalesBartosiewicz, Zbigniew; Kotta, Ülle; Pawluszewicz, Ewa; Wyrwas, MałgorzataProceedings of the Estonian Academy of Sciences. Physics. Mathematics2007 / 3, p. 264-282
• Algebraic formalism of differential p-forms and vector fields for nonlinear control systems on homogeneous time scalesBartosiewicz, Zbigniew; Kotta, Ülle; Pawluszewicz, Ewa; Tõnso, Maris; Wyrwas, MałgorzataProceedings of the Estonian Academy of Sciences2013 / p. 215-226 https://doi.org/10.3176/proc.2013.4.02 https://www.scopus.com/sourceid/11500153303 https://www.scopus.com/record/display.uri?eid=2-s2.0-84887841347&origin=resultslist&sort=plf-f&src=s&sot=b&sdt=b&s=DOI%2810.3176%2Fproc.2013.4.02%29&sessionSearchId=f124baea23c7e59a88234b4350eaca80 https://jcr.clarivate.com/jcr-jp/journal-profile?journal=P%20EST%20ACAD%20SCI&year=2013 https://www.webofscience.com/wos/woscc/full-record/WOS:000327478600002
• Equivalence of linear control systems on time scalesBartosiewicz, Zbigniew; Kotta, Ülle; Pawluszewicz, EwaProceedings of the Estonian Academy of Sciences. Physics. Mathematics2006 / 1, p. 43-52
• Feedback linearization of an active magnetic bearing system operated with a zero-bias fluxMystkowski, Arkadiusz; Kaparin, Vadim; Kotta, Ülle; Pawluszewicz, Ewa; Tõnso, MarisInternational journal of applied mathematics and computer science2017 / p. 539-548 : ill https://doi.org/10.1515/amcs-2017-0038 https://www.scopus.com/sourceid/4500151509 https://www.scopus.com/record/display.uri?eid=2-s2.0-85030526920&origin=inward&txGid=c7b0caceaa315d4f6c91b0a85d915ae4 https://jcr.clarivate.com/jcr-jp/journal-profile?journal=INT%20J%20AP%20MAT%20COM-POL&year=2023 https://www.webofscience.com/wos/woscc/full-record/WOS:000411568700008
• FLHex: a flapped-paddle hexapod for all-terrain amphibious locomotionBurzynski, Piotr; Simha, Ashutosh; Kotta, Ülle; Pawluszewicz, Ewa; Sastry, ShivakumarBulletin of the Polish Academy of Sciences Technical Sciences2021 / art. e139007, 9 p. : ill https://doi.org/10.24425/bpasts.2021.139007 https://www.scopus.com/sourceid/13427 https://www.scopus.com/record/display.uri?eid=2-s2.0-85122255049&origin=inward&txGid=661f66d447de4b5bbbcfbed2fa78ad65 https://jcr.clarivate.com/jcr-jp/journal-profile?journal=B%20POL%20ACAD%20SCI-TECH&year=2022 https://www.webofscience.com/wos/woscc/full-record/WOS:000763606400008
• Forward and backward shifts of vector fields : towards the dual algebraic frameworkMullari, Tanel; Kotta, Ülle; Bartosiewicz, Zbigniew; Pawluszewicz, Ewa; Moog, ClaudeIEEE transactions on automatic control2017 / p. 3029-3033 https://doi.org/10.1109/TAC.2016.2608718 https://www.scopus.com/sourceid/17339 https://www.scopus.com/record/display.uri?eid=2-s2.0-85028357881&origin=inward&txGid=0397bf2555a5c74183cf5ad65dc1c355 https://jcr.clarivate.com/jcr-jp/journal-profile?journal=IEEE%20T%20AUTOMAT%20CONTR&year=2023 https://www.webofscience.com/wos/woscc/full-record/WOS:000402733600039
• Linearization by generalized input-output injections on homogeneous time scalesCiulkin, Monika; Pawluszewicz, Ewa; Kaparin, Vadim; Kotta, Ülle2016 21st International Conference on Methods and Models in Automation and Robotics (MMAR 2016) : Miedzyzdroje, Poland, 29 August - 1 September 20162016 / p. 48-53 https://doi.org/10.1109/MMAR.2016.7575086
• Linearization by input-output injections on homogeneous time scalesCiulkin, Monika; Kaparin, Vadim; Kotta, Ülle; Pawluszewicz, EwaProceedings of the Estonian Academy of Sciences2014 / p. 387-397 https://artiklid.elnet.ee/record=b2707375*est https://doi.org/10.3176/proc.2014.4.04 https://www.scopus.com/sourceid/11500153303 https://www.scopus.com/record/display.uri?eid=2-s2.0-84911009192&origin=inward&txGid=375347fb06f5fbc2d8a990151874050d https://jcr.clarivate.com/jcr-jp/journal-profile?journal=P%20EST%20ACAD%20SCI&year=2014 https://www.webofscience.com/wos/woscc/full-record/WOS:000346144800004
• Motor failure tolerant control system with self diagnostics for unmanned multirotorsAmbroziak, Leszek; Simha, Ashutosh; Pawluszewicz, Ewa; Kotta, Ülle2019 24th International Conference on Methods and Models in Automation and Robotics (MMAR)2019 / p. 422–427 : ill https://doi.org/10.1109/MMAR.2019.8864726
• Nabla derivatives associated with nonlinear control systems on homogeneous time scalesBartosiewicz, Zbigniew; Kotta, Ülle; Mullari, Tanel; Tõnso, Maris; Pawluszewicz, Ewa; Wyrwas, MałgorzataNonlinear analysis : modelling and control2016 / p. 547-563 https://doi.org/10.15388/NA.2016.4.8 https://www.scopus.com/sourceid/17700155806 https://www.scopus.com/record/display.uri?eid=2-s2.0-84963574794&origin=inward&txGid=708713c5b2cf40f232b80b4b44249447 https://jcr.clarivate.com/jcr-jp/journal-profile?journal=NONLINEAR%20ANAL-MODEL&year=2016 https://www.webofscience.com/wos/woscc/full-record/WOS:000375346800008
• On the finiteness of accessibility test for nonlinear discrete-time systemsSarafrazi, Mohammad Amin; Pawluszewicz, Ewa; Bartosiewicz, Zbigniew; Kotta, ÜlleInternational journal of control2021 / p. 2330-2336 https://doi.org/10.1080/00207179.2019.1706102 https://www.scopus.com/sourceid/12342 https://www.scopus.com/record/display.uri?eid=2-s2.0-85076713926&origin=inward&txGid=363238fdc3e9bf44167a797df53cb499 https://jcr.clarivate.com/jcr-jp/journal-profile?journal=INT%20J%20CONTROL&year=2022 https://www.webofscience.com/wos/woscc/full-record/WOS:000505402500001
• On the properties of forward and backward shifts of vector fieldsKaldmäe, Arvo; Kaparin, Vadim; Kotta, Ülle; Mullari, Tanel; Pawluszewicz, EwaProceedings of the Estonian Academy of Sciences2022 / p. 314-325 https://doi.org/10.3176/proc.2022.4.02 https://www.scopus.com/sourceid/11500153303 https://www.scopus.com/record/display.uri?eid=2-s2.0-85144227254&origin=inward&txGid=0a25d396b3d8b83e0d0b9a70df64547d https://jcr.clarivate.com/jcr-jp/journal-profile?journal=P%20EST%20ACAD%20SCI&year=2022 https://www.webofscience.com/wos/woscc/full-record/WOS:000901995900002
• Popov form and the explicit equations of inverse systemsBartosiewicz, Zbigniew; Kotta, Ülle; Pawluszewicz, Ewa; Tõnso, Maris; Wyrwas, MałgorzataProceedings of the Estonian Academy of Sciences2018 / p. 432-355 : ill http://www.kirj.ee/public/proceedings_pdf/2018/issue_4/proc-2018-4-342-355.pdf https://doi.org/10.3176/proc.2018.4.04 https://www.scopus.com/sourceid/11500153303 https://www.scopus.com/record/display.uri?eid=2-s2.0-85060904949&origin=inward&txGid=b55a86ba1f2a1f232ff32d86073146ee https://jcr.clarivate.com/jcr-jp/journal-profile?journal=P%20EST%20ACAD%20SCI&year=2022 https://www.webofscience.com/wos/woscc/full-record/WOS:000450486100006
• The concepts of Lie derivative for discrete-time systemsMullari, Tanel; Kotta, Ülle; Bartosiewicz, Zbigniew; Pawluszewicz, EwaProceedings of the Estonian Academy of Sciences2012 / p. 253-265 : ill
• The strong Popov form of nonlinear input–output equationsBartosiewicz, Zbigniew; Pawluszewicz, Ewa; Wyrwas, Małgorzata; Kotta, Ülle; Tõnso, MarisProceedings of the Estonian Academy of Sciences2018 / p. 193–206 https://doi.org/10.3176/proc.2018.3.01 https://www.scopus.com/sourceid/11500153303 https://www.scopus.com/record/display.uri?eid=2-s2.0-85052690894&origin=inward&txGid=d88c4ecefcc3cd05ce583eb9b8cd5c04 https://jcr.clarivate.com/jcr-jp/journal-profile?journal=P%20EST%20ACAD%20SCI&year=2022 https://www.webofscience.com/wos/woscc/full-record/WOS:000443380000001
• Weak reachability and controllability of discrete-time nonlinear systems: generic approach and singular pointsMullari, Tanel; Kotta, Ülle; Bartosiewicz, Zbigniew; Sarafrazi, Mohammad Amin; Moog, Claude; Pawluszewicz, EwaInternational journal of control2020 / p. 483-489 https://doi.org/10.1080/00207179.2018.1479076 https://www.scopus.com/sourceid/12342 https://www.scopus.com/record/display.uri?eid=2-s2.0-85049910434&origin=inward&txGid=0c1239de9fad2580b083b5f126ba3065 https://jcr.clarivate.com/jcr-jp/journal-profile?journal=INT%20J%20CONTROL&year=2022 https://www.webofscience.com/wos/woscc/full-record/WOS:000525971000012