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Dan Margalit (born March 6, 1976) is an American mathematician at Vanderbilt University. His research fields include geometric group theory and low-dimensional topology, with a particular focus on mapping class groups of surfaces.

Margalit earned his bachelor's degree from Brown University.^[1] He earned his doctorate from the University of Chicago in 2003, advised by Benson Farb. His thesis was titled Algebra versus Topology in Mapping Class Groups.^[2] Margalit was a postdoctoral scholar at the University of Utah from 2003 to 2008. He was a faculty member at Tufts University from 2008 to 2010, before going to the Georgia Institute of Technology.^[1] In 2023, Margalit moved to Vanderbilt University as chair of the Department of Mathematics.^[3]

Margalit is known for his work in exposition of geometric group theory, particularly his book with Benson Farb, A Primer on Mapping Class Groups.^[4]

Margalit became a fellow of the American Mathematical Society in 2019; he was recognized "for contributions to low-dimensional topology and geometric group theory, exposition, and mentoring."^[5] Margalit was a 2009 Sloan Research Fellow.^[6] For 2021 he received the Levi L. Conant Prize of the AMS.^[7] For 2024 he was awarded the Leroy P. Steele Prize for Mathematical Exposition.^[8]

Books

• Farb, Benson; Margalit, Dan (2011). A Primer on Mapping Class Groups. Princeton University Press. ISBN 978-1-4008-3904-9.^[4]
• Clay, Matt; Margalit, Dan (2017). Office Hours with a Geometric Group Theorist. Princeton University Press. ISBN 978-1-4008-8539-8.^[9]

Translations

• Fathi, Albert; Laudenbach, François; Poénaru, Valentin (2012). Thurston's Work on Surfaces (translation from French). Translated by Kim, Djun; Margalit, Dan. Princeton University Press. ISBN 978-0-691-14735-2.^[10]