We are pleased to announce a conference in honor of Professor Heydar Radjavi and in celebration of his 70th birthday. The conference will be held at Hotel Golf, Bled, Slovenia, May 14-15, 2005. It will consist of invited and contributed talks related to H. Radjavi's work.

Heydar Radjavi's many important contributions to linear algebra and to operator theory include his seminal characterization of self-commutators of operators on Hilbert space and his definitive trace condition for simultaneous triangularizability of semigroups of matrices which was the culmination of work on this topic by several generations of distinguished algebraists. Heydar has obtained numerous other results of broad interest on invariant subspaces, simultaneous triangularizability, products of involutions, semigroups of matrices and many other topics. As he approaches 70, his research productivity is increasing with his age. It is hoped that this conference will reflect the breadth and influence of his research.

Those interested in attending should register by January 15, 2005. For more information please write to Damjana Kokol Bukovšek.