Johannes Hauber

Pinwheels in symplectic rational and ruled surfaces and non‐squeezing of rational homology balls

Abstract We use almost toric fibrations and the symplectic rational blow‐up to determine when certain Lagrangian pinwheels, which we call liminal , embed in symplectic rational and ruled surfaces. The case of ‐pinwheels, namely Lagrangian , answers a question of Kronheimer in the...