SOVIET FOREIGN MINISTER Alexander Bessmertnykh arrived in Japan Friday and said Soviet President Mikhail Gorbachev's visit next month will be an event of importance for Asia and the world . . . CONCERT PIANIST Eileen Joyce, who learned to play on a beer-stained pub upright and became known for playing Rachmaninov in the 1945 British movie classic "Brief Encounter," died Monday in London at age 78 . . . ITALY'S 49th postwar government, headed by Christian Democratic Prime Minister Giulio Andreotti, agreed to resign Friday after the Socialists, the second largest party in the five-party coalition, demanded a new government with a new program to lead the country to the end of the legislature in 1992.