Anna Soffia Hauksdóttir, Sven P. Sigurdsson, Sigurður Örn Aðalgeirsson, Helgi Porgilsson, Gísli Herjólfsson. Closed form solutions of the Sylvester and the Lyapunov equations - closed form Gramians. In American Control Conference, ACC 2008, Seattle, WA, USA, 11-13 June 2008. pages 2585-2590, IEEE, 2008. [doi]
Abstract is missing.