Hard
Lefschetz actions in
Riemannian geometry
Mr. Changzheng Li
The
Abstract
It
is known that the hard Lefschetz action, together
with Kähler
identities for Kähler
(resp. hyperkähler) manifolds, determines
a su(1, 1)sup
(resp. sp(1, 1)sup) Lie superalgebra action on differential forms. In this talk, we
will explain the geometric origin of this action, and we also generalize it to
manifolds with other holonomy groups.
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Date: |
April 27, 2007 (Friday) |
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Time: |
4:00 – 5:00pm |
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Place: |
Room 517, Meng Wah Complex, HKU |
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All are
welcome |
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