The 8th International AAECC Conference, held in Tokyo, Japan in August 1990, focused on the algebraic aspects of modern computer science. The topic of error-correcting codes is one where theory and implementation are unified into a subject both of mathematical interest and practical importance. Algebraic algorithms are not only interesting theoretically, but also important in computer and communication engineering and many other fields. Researchers from Europe, North America, Japan and other regions of the world presented papers at the AAECC Conference which related the results of recent...