Danny Calegari
Danny Calegari
Alma mater	University of California, Berkeley University of Melbourne
Scientific career
Fields	Mathematics
Institutions	University of Chicago
Thesis	Foliations and the Geometry of Three-Manifolds  (2000)
Doctoral advisor	Andrew Casson William Thurston
Notes
Brother of Frank Calegari

Danny Matthew Cornelius Calegari is a mathematician and, as of 2023^[update], a professor of mathematics at the University of Chicago. His research interests include geometry, dynamical systems, low-dimensional topology, and geometric group theory.

In 1994, Calegari received a B.A. in Mathematics from the University of Melbourne with honors. He received his Ph.D. in 2000 from the University of California, Berkeley under the joint supervision of Andrew Casson and William Thurston; his dissertation concerned foliations of three-dimensional manifolds.^[1]

From 2000–2002 he was Benjamin Peirce Assistant Professor at Harvard University, after which he joined the California Institute of Technology faculty; he became Merkin Professor in 2007. He was a University Professor of Pure Mathematics at the University of Cambridge in 2011–2012, and has been a Professor of Mathematics at the University of Chicago since 2012.^[2]

Calegari is also an author of short fiction, published in Quadrant, Southerly, and Overland. His story A Green Light was a winner of a 1992 The Age Short Story Award.^[3]

Calegari was one of the recipients of the 2009 Clay Research Award for his solution to the Marden Tameness Conjecture and the Ahlfors Measure Conjecture.^[4] In 2011 he was awarded a Royal Society Wolfson Research Merit Award,^[5] and in 2012, he became a Fellow of the American Mathematical Society.^[6] In 2012 he delivered the Namboodiri Lectures^[7] at the University of Chicago, and in 2013 he delivered the Blumenthal Lectures^[8] at Tel Aviv University. In 2022 he gave an invited lecture^[9] at the ICM and in 2024 he gave the Floer Lectures^[10] in Bochum and the Roever Lecture^[11] at Washington University in St. Louis.

• Calegari, Danny (2007). Foliations and the geometry of 3-manifolds. Oxford Mathematical Monographs. Oxford: Oxford University Press. pp. xiv+363 pp. ISBN 978-0-19-857008-0. MR 2327361.
• Calegari, Danny (2009). scl (stable commutator length). MSJ Memoirs. Vol. 20. Tokyo: Mathematical Society of Japan. pp. xii+209 pp. ISBN 978-4-931469-53-2. MR 2527432.
• Calegari, Danny (1999). "${\displaystyle \mathbb {R} }$-covered foliations of hyperbolic 3-manifolds". Geometry & Topology. 3: 137–153. arXiv:math/9808064. doi:10.2140/gt.1999.3.137. MR 1695533. S2CID 8716835.
• Calegari, Danny; Dunfield, Nathan (2003). "Laminations and groups of homeomorphisms of the circle". Inventiones Mathematicae. 152 (1): 149–204. arXiv:math/0203192. Bibcode:2003InMat.152..149D. doi:10.1007/s00222-002-0271-6. MR 1965363. S2CID 15149654.
• Calegari, Danny (2006). "Promoting essential laminations". Inventiones Mathematicae. 166 (3): 583–643. arXiv:math/0210148. Bibcode:2006InMat.166..583C. doi:10.1007/s00222-006-0004-3. MR 2257392. S2CID 13985835.
• Calegari, Danny; Gabai, David (2006). "Shrinkwrapping and the taming of hyperbolic 3-manifolds". Journal of the American Mathematical Society. 19 (2): 385–446. arXiv:math/0407161. doi:10.1090/S0894-0347-05-00513-8. MR 2188131. S2CID 1053364.
• Calegari, Danny (2006). "Universal circles for quasigeodesic flows". Geometry & Topology. 10 (4): 2271–2298. arXiv:math/0406040. doi:10.2140/gt.2006.10.2271. S2CID 5604620.
• Calegari, Danny (2008). "What is stable commutator length?" (PDF). Notices of the American Mathematical Society. 55 (9): 1100–1101. MR 2451345.

Mathematician Frank Calegari is Danny Calegari's brother.^[12]

• Danny Calegari publications indexed by Google Scholar

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