Tim Cochran; Topology of 3 and 4-dimensional manifolds, knot theory, (infinite) group theory, modules over noncommutative rings.
Shelly Harvey; Low-dimensional topology and geometry, group theory, and non-commutative algebra.
Brendan Hassett; Algebraic geometry.
Andrew Putman, Moduli space of curves, mapping class group, low-dimensional topology, geometric group theory.
Anthony Varilly-Alvarado; Algebraic geometry, higher-dimensional arithmetic algebraic geometry, Brauer-Manin obstructions.
Brian Lehmann; Birational geometry, algebraic geometry.
Sho Tanimoto; Algebraic geometry, rational points.