During a sabbatical term at the Institut des Hautes Études Scientifique in Paris in 1985 she studied Gromov's work on elliptic methods which became the basis for much of her later work. In 1984 she was promoted to full professor at Stony Brook, being Chair of the Mathematics Department there from 1991 to 93.
Sa panahon ng sabbatical kataga at ang Institut des Hautes Études Scientifique sa Paris sa 1985-aral siya Gromov ng trabaho sa tambilugin paraan na kung saan ay naging batayan para sa marami ng kanyang trabaho mamaya. 1984 siya sa itaas upang ganap na propesor sa Stony Brook, pagiging Chair ng Mathematics Department may 1991-93.