Preferencje help
Widoczny [Schowaj] Abstrakt
Liczba wyników
Cover of the book
Tytuł książki

Free algebras and noncommutative power series in the analysis of nonlinear control systems: an application to approximation problems

Seria
Rozprawy Matematyczne tom/nr w serii: 504 wydano: 2014
Zawartość
Warianty tytułu
Abstrakty
EN
The paper contains a consistent presentation of the approach developed by the authors to analysis of nonlinear control systems, which exploits ideas and techniques of formal power series of independent noncommuting variables and the corresponding free algebras. The main part of the paper was conceived with a view of comparing our results with the results obtained by use of the differential-geometric approach. We consider control-linear systems with m controls. In a free associative algebra with m generators (which can be thought of as a free algebra of iterated integrals), a control system uniquely defines two special objects: the core Lie subalgebra and the graded left ideal. It turns out that each of these two objects completely defines a homogeneous approximation of the system. Our approach allows us to propose an algebraic (coordinate-independent) definition of the homogeneous approximation. This definition provides the uniqueness of the homogeneous approximation (up to a change of coordinates) and gives a way to find it directly, without preliminary finding privileged coordinates. The presented technique yields an effective description of all privileged coordinates and an explicit way of constructing an approximating system. In addition, we discuss the connection between the homogeneous approximation and an approximation in the sense of time optimality.
Miejsce publikacji
Warszawa
Copyright
Seria
Rozprawy Matematyczne tom/nr w serii: 504
Liczba stron
88
Liczba rozdzia³ów
Opis fizyczny
Daty
wydano
2014
Twórcy
  • Institute of Mathematics, University of Szczecin, Wielkopolska 15, 70-451 Szczecin, Poland
  • Department of Differential Equations and Control, Kharkiv National University, Svoboda Sq. 4, 61-022 Kharkiv, Ukraine
Bibliografia
Języki publikacji
EN
Uwagi
Identyfikator YADDA
bwmeta1.element.bwnjournal-rm-doi-10_4064-dm504-0-1
Identyfikatory
DOI
10.4064/dm504-0-1
Kolekcja
DML-PL
Zawartość książki

rozwiń roczniki

JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.