The importance of computer algebra methods and computer algebra systems for scientific computing has increased considerably in recent times. During the last decade, a new generation of general-purpose computer algebra systems such as Maple, Magma, Mathematica, MuPAD, Reduce, Axiom and others have been developed, which enable the user to solve the following three important tasks within a uniform framework of the same systems: symbolic manipulation numerical computation visualization The ongoing development of such systems, including their adaptation to parallel environments, puts them to the forefront in scientific computing and enables the practical solution of many complex applied problems in the domains of natural sciences and engineering knowledge.

The WWCA workshop is intended to provide a forum for researchers and practitioners in the area of computer algebra. This workshop is devoted to the 60th birthday of**Sergei Abramov**(CCAS, Moscow, Russia) whose influential contributions to symbolic methods are highly acknowledged and adopted by many Computer Algebra systems.