Albany Aided Segregation, Court Declares
Federal appeals court, in groundbreaking decision, rules that New York State education officials and State Legislature actively 'encouraged the perpetuation of segregation' in Yonkers in 1960's and 1970's and that state must pay high costs of remedying harm done to black and Hispanic children; examples of how state officials willingly sustained segregation are cited; state officials say that cost could be as high as $300 million; state and Yonkers officials comment on ruling; photo (M)