Event Series
Event Type
Wednesday, March 22, 2023 3:15 PM
Paul Yang (Princeton University)

Embeddability is a natural geometric criteria for CR structures. In dimensions higher than three, there is local integrability condition that implies embeddability. In this dimension, this condition is vacuous and is replaced by a global condition on the sign of the Paneitz operator, a fourth order operator. This condition turns out to play an important role in the solvability of the CR Yamabe problem.