September 20, 1987

LEAD: FOR the first time in years, experienced Eurobond dealers are looking for jobs - and not finding them. In one major sector of the Euromarkets, for floating-rate notes, roughly a quarter of the people have lost their jobs in the past year. Many banks and investment houses have quietly retreated from the most competitive areas, while a big British bank, Lloyds Bank P.L.C., announced three months ago that it was pulling out of the Euromarkets altogether.

LEAD: Part 2 of The Times Magazine today is The Business World, including these special reports:

LEAD: Its architectural resemblance to the historical site hundreds of miles south in Virginia is why the 6.5-acre office complex now going up in East Brunswick, N.J., will be inaugurated as Williamsburg Commons when it is completed late next year.

LEAD: LESS than four years ago, William Dean Singleton had no newspapers and no money to speak of - only a yearning to own a newspaper chain. By the end of this year, if all goes according to plan, the newspaper chain the 36-year-old Texan runs will be worth an estimated $1.2 billion, with Mr. Singleton owning roughly one-third of that.

LEAD: Soviet diplomats told the United States this week that important regulations used to prevent Soviet Jews from emigrating were being eased and that an amnesty was possible for some political and religious prisoners, according to a State Department official.

LEAD: Judge Robert H. Bork finished five days of testimony before a sharply divided Senate Judiciary Committee today, vowing that if he is confirmed to the Supreme Court he will be guided not by ''some personal political agenda of my own'' or a ''desire to set a social agenda for the nation,'' but by the text of the Constitution and the intent of its framers.

LEAD: ROCK SPRINGS By Richard Ford. 235 pp. New York: The Atlantic Monthly Press. $17.95.

LEAD: IT has happened before: A Republican President in political trouble receives the leader of the nation he has portrayed as public enemy No. 1, and tensions dissipate for a time. It happened in 1973, when Leonid I. Brezhnev, the last Soviet leader to visit the United States for a summit conference, came to see President

LEAD: Governor Cuomo, who used to proclaim proudly that he knew more about Buffalo than Beirut, departed yesterday on a weeklong trip to the Soviet Union, part of a broad effort to increase his knowledge of foreign affairs and prove that he is competent in dealing with them.

LEAD: OPEN-SPACE preservation efforts are moving forward on this dollop of land off the Rhode Island coast.

LEAD: THE historian is both discoverer and creator.

LEAD: Mortgage rates, which have been rising since Aug. 28, reached a 21-month high last week, and economists expect more increases if capital market rates continue to go up. Nationally, and in the metropolitan area, 30-year-fixed mortgage rates increased by slightly over a half-pecentage point to 10.97 percent.