He received his Ph.D. in mathematics from Princeton University in 1978, under the direction of William Thurston. Among his most famous results is his resolution of the Nielsen realization problem, a 1932 conjecture by Jakob Nielsen. Along with William J. Floyd, he wrote large parts of Thurston's influential Princeton lecture notes, and he is well known for his work (some of which is joint with Craig Hodgson) in exploring and clarifying Thurston's hyperbolic Dehn surgery.
Kerckhoff is one of four academics from Stanford University, along with Gunnar Carlsson, Ralph Cohen, and James Milgram, who were instrumental in developing the controversial California Mathematics Academic Content Standards for the State Board of Education.
- Kerckhoff, Steven P., The Nielsen realization problem. Annals of Mathematics (second series) 117(2):235–265, 1983.
- Kerckhoff, Steven P.; Thurston, William P., Noncontinuity of the action of the modular group at Bers' boundary of Teichmüller space. Invent. Math. 100 (1990), no. 1, 25–47.
- Kerckhoff, Steven; Masur, Howard; Smillie, John, Ergodicity of billiard flows and quadratic differentials. Ann. of Math. (2) 124 (1986), no. 2, 293–311.
- Cooper, Daryl; Hodgson, Craig D.; Kerckhoff, Steven P. Three-dimensional orbifolds and cone-manifolds. With a postface by Sadayoshi Kojima. MSJ Memoirs, 5. Mathematical Society of Japan, Tokyo, 2000. x+170 pp. ISBN 4-931469-05-1
- Hodgson, Craig D.; Kerckhoff, Steven P., Rigidity of hyperbolic cone-manifolds and hyperbolic Dehn surgery. J. Differential Geom. 48 (1998), no. 1, 1–59.
- Big Business, Race, and Gender in Mathematics Reform, by Steven Krantz (ISBN 0-8218-1398-6).
- Letter from Kerckhoff, Wayne Bishop, Jane Friedman, and Yat-Sun Poon, to California State Curriculum Commission and California State Board of Education, dated November 21, 2000