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SUMMARY:Claude LeBrun (Stony Brook)
DTSTART:20210216T134500Z
DTEND:20210216T144500Z
DTSTAMP:20260423T005704Z
UID:BOWL/14
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/BOWL/14/">An
 ti-self-dual 4-manifolds\, quasi-Fuchsian groups\, and almost Kähler geom
 etry</a>\nby Claude LeBrun (Stony Brook) as part of B.O.W.L Geometry Semin
 ar\n\n\nAbstract\nIt is known that the almost-Kähler anti-self-dual metri
 cs on a given 4-manifold sweep out an open subset in the moduli space of a
 nti-self-dual metrics. However\, we show by example that this subset is no
 t generally closed\, and does not always sweep out entire connected compon
 ents in the moduli space. The construction hinges on an unexpected link be
 tween harmonic functions on certain hyperbolic 3-manifolds and self-dual h
 armonic 2-forms on associated 4-manifolds.\n
LOCATION:https://researchseminars.org/talk/BOWL/14/
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