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SUMMARY:Joé Brendel (Tel Aviv University)
DTSTART:20221130T121000Z
DTEND:20221130T133000Z
DTSTAMP:20260423T024538Z
UID:GDS/68
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/GDS/68/">Pin
 wheels as Lagrangian barriers</a>\nby Joé Brendel (Tel Aviv University) a
 s part of Geometry and Dynamics seminar\n\n\nAbstract\nPinwheels are certa
 in singular Lagrangians in four-dimensional \nsymplectic manifolds. In thi
 s talk we focus on the case of the complex \nprojective plane\, where pinw
 heels arise naturally as visible Lagrangians \nin its almost toric fibrati
 ons or\, alternatively\, as vanishing cycles of \nits degenerations. Pinwh
 eels have been shown to have interesting \nrigidity properties by Evans--S
 mith. The goal of this talk is to show \nthat Lagrangian pinwheels are Lag
 rangian barriers in the sense of Biran\, \nmeaning that their complement h
 as strictly smaller Gromov width than the \nambient space. Furthermore\, w
 e will discuss a connection to the Lagrange \nspectrum. This is joint work
  with Felix Schlenk.\n
LOCATION:https://researchseminars.org/talk/GDS/68/
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