Contents Volume 293/1-3 A. Fonseca On the equality of families of decomposable symmetrized tensors. . . A. Lim and C.-B. Zhu Multiresolution on compact groups .-Y. Wang, B.-Y. Xi and F. Zhang Some inequalities for sum and product of positive semidefinite EE 5s oh a wee RA RE Se aN haaae Saw Ra ERO OES ». Furtado and F.C. Silva On the characteristic polynomial of matrices with prescribed rows . . . Neto and F.C. Silva On the recognition and rigidity problems for sums of matrices.... . ». Serra Capizzano and C. Tablino Possio Spectral and structural analysis of high precision finite difference matrices for elliptic operators 2. Katirtzoglou The cycle time vector of D-A-D functions................... ’. Wu, Q. Li and J. Li Spectra and elementary cycles of the digraphs with unique paths of fixed length . Lakatos On the Coxeter polynomials of wild stars.................... J.M. van den Hof and J.H. van Schuppen Positive matrix factorization via extremal polyhedral cones C. Margulies and W. Margulies Nonlinear resonance set for nonlinear matrix equations.......... Y.I. Karlovich, I.M. Spitkovsky and R.A. Walker Almost periodic factorization of block triangular matrix functions revisited J. Liu and J. Wang Some inequalities for Schur complements. ................... E.H. Ayachour Expanded systems and the ILU preconditioner for solving non-Her- mitian linear systems H. Haffaf, G. Dauphin-Tanguy and M. Kamel Rahmouni Graphical matroid for causality assignment in bond graphs....... Table of Contents continues Table of Contents continued M. Wei Reverse order laws for generalized inverses of multiple matrix products Author index to volume 293 This journal is part of ContentsDirect, the free alerting service which sends tables of contents by e-mail for Elsevier Science books and journals. The quickest way to register for.ContentsDirect is via the World Wide Web at: www-elsevier.nV/locate/ContentsDirect CDOINRTEENCTTS If you don’t have access to the WWW you can register for this service by sending an e-mail message to [email protected] specifying the title of the publication you wish to register for. The tables of contents are also available on the Elsevier Science website at: www.elsevier.nl or www.elsevier.com or www.elsevier.co.jp