Lopes, Ana PaulaPascoal, António José2012-07-302012-07-302009http://hdl.handle.net/10400.22/579In this paper we developed a new Lanczos algorithm on the Grassmann manifold.  This work comes in the wake of the article by A. Edelman, T. A. Arias and S. T. Smith, “The geometry of algorithms with orthogonality constraints”porMatemáticaAlgoritmoconference object