DANCE

The Bolshoi Ballet has been invited to perform at the Olympic arts festival to be held during the 1988 Seoul Olympics, South Korean organizers said Wednesday. The organizers said the Soviet ballet troupe was one of scores of groups being asked to take part in the festival to be held Aug. 17-Oct. 15 next year. The Olympics will be staged Sept. 17-Oct. 2. Organizers, according to Reuters news service, were said to be concerned that the Soviet Union might boycott the 1988 Olympics, as it had done in Los Angeles in 1984.