The decisions handed down by New York city and state officials concerning which cultural groups will be allowed to make their home at the Ground Zero site in lower Manhattan was apparently strongly influenced by financial issues at Lincoln Center. The city-owned complex is kept running largely by the rent paid by its various resident groups. That fact made it unlikely that the city would approve any move to Ground Zero by New York City Opera, which went to great lengths to keep its proposal alive in the face of mounting opposition from city leaders.