Algorithms for Computing the QR Decomposition of a Set of Matrices with Common Columns.

Petko Yanev Paolo Foschi Erricos John Kontoghiorghes Algorithms for Computing the QR Decomposition of a Set of Matrices with Common Columns. 83-93 2004 39 Algorithmica 1 http://dx.doi.org/10.1007/s00453-003-1080-z db/journals/algorithmica/algorithmica39.html#YanevFK04