Peter Shalen

Peter Shalen
Alma materHarvard College (BA, 1966);
Harvard University (PhD, 1972)
Known forJSJ decomposition
Scientific career
FieldsMathematics, Topology
InstitutionsUniversity of Illinois at Chicago
Doctoral studentsNathan Dunfield

Peter B. Shalen (born c. 1946) is an American mathematician, working primarily in low-dimensional topology. He is the "S" in JSJ decomposition.