19 (1980), no. 3, 221–237. Allen Hatcher, On the boundary curves of incompressible surfaces, Pacific Journal of Mathematics 99 (1982), no. 2, 373–377. William Floyd and Allen Hatcher, Incompressible surfaces in punctured-torus bundles, Topology and its Applications 13 (1982), no. 3, 263–282. Allen Hatcher and William Thurston, Incompressible surfaces in 2-bridge knot complements, Inventiones Mathematicae 79 (1985), no. 2, 225–246. Allen Hatcher, A proof of the Smale conjecture, , Annals of Mathematics (2) 117 (1983), no. 3, 553–607. Books External links References 1944 births Living people People from Indianapolis Mathematicians from Indiana Oberlin College alumni Stanford University alumni 20th-century American mathematicians 21st-century American mathematicians Topologists Princeton University faculty Institute for Advanced Study visiting scholars University of California, Los Angeles faculty Cornell University faculty