VOLUME 365, MAY 15, 2003 Special Issue on Linear Algebra Methods in Representation Theory Special Issue Editors: Dieter Happel, Claus M. Ringel and Juri Drozd Contents Volume 365 Special Issue on Linear Algebra Methods in Representation Theory D. Happel, C.M. Ringel and J. Drozd Preface Another algorithm for nonnegative matrices J. Bender and K. Bongartz Minimal singularities in orbit closures of matrix pencils R. Bocklandt Symmetric quiver settings with a regular ring of invariants V.M. Bondarenko Linear operators on S-graded vector spaces . Brenner On the kernel of an irreducible map . Brenner, M.C.R. Butler and A.D. King Irreducible maps and bilinear forms . Brustle On positive roots of pg-critical algebras . Brustle and V.V. Sergeichuk Estimate of the number of one-parameter families of modules over a tame algebra J.A. de la Pena Periodic Coxeter matrices V. Dlab and P. Lakatos On spectral radii of Coxeter transformations M. Domokos On the dimension of faithful modules over finite dimensional basic algebras P. Draxler Tame biextensions of derived tame hereditary algebras M.A. Gatica and M.J. Redondo Hochschild cohomology of incidence algebras as one-point extensions 169 Table of Contents continues Table of Contents continued E. Gunnlaugsdottir Monoidal structure of the category of u;-modules Y. Han and M. Liu Regular points in system spaces L. Hille Quivers, cones and polytopes L. Hille and G. Rohrle Variation on a theme of Richardson A. Krause Algebraic computations in derived categories H. Krause A short proof for Auslander’s defect formula S.G. Kuzmin and A.N. Zubkov Rings of invariants of 2 x 2 matrices in positive characteristic H. Lenzing and L. Hasenberg Additive functions on quivers J. Muller A note on applications of the “Vector Enumerator’ algorithm R. Norenberg From elementary calculations to Hall polynomials F. Okoh and F.A. Zorzitto Curves arising from Kronecker modules S. Ovsienko Strongly nilpotent matrices and Gelfand—Zetlin modules C.C. Xi and D. Xiang Cellular algebras and Cartan matrices A. Zavadskij Tame equipped posets Author index to volume 365 CO NTE NTS This journal is part of ContentsDirect, the free alerting service which sends tables of contents by e-mail for Elsevier Science books and journals. You can register for @ ContentsDirect online at: http://contentsdirect.elsevier.com