Special Issue of LAA devoted to papers presented at the 13th ILAS Conference, Amsterdam, July 19-22, 2006. LAA will publish a special issue devoted to papers presented at the 13th Conference of the International Linear Algebra Society (ILAS), Coimbra, July 19 - 22, 2006. Papers should be submitted by October 31, 2006 to one of the special editors whose names and addresses are listed below. The usual standards of LAA will apply. Harm Bart Econometric Institute Erasmus University Rotterdam P.O. Box 1738 3000 DR Rotterdam The Netherlands e-mail: bart@few.eur.nl Jan Brandts Korteweg-de Vries Institute for Mathematics University of Amsterdam Plantage Muidergracht 24 1018 TV Amsterdam The Netherlands e-mail: brandts@science.uva.nl André Ran Afdeling Wiskunde, FEW Vrije Universiteit Amsterdam De Boelelaan 1081a 1081 HV Amsterdam The Netherlands e-mail: acm.ran@few.vu.nl Paul Van Dooren Universite Catholique de Louvain Department of Mathematical Engineering 4, avenue Georges Lemaitre B-1348 Louvain la Neuve, Belgium e-mail: vdooren@csam.ucl.ac.be Editor-in-chief responsible for this issue: Richard A. Brualdi Department of Mathematics University of Wisconsin-Madison 480 Lincoln Drive Madison, WI 53706, USA brualdi@math.wisc.edu