Lefschetz fibrations on adjoint orbits - PMA
Lefschetz fibrations on adjoint orbits - PMA
Lefschetz fibrations on adjoint orbits - PMA
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Main result<br />
Given H0 ∈ h and H ∈ hR with H a regular element. Then, the<br />
“height functi<strong>on</strong> ” fH : O (H0) → C defined by<br />
fH (x) = 〈H, x〉 x ∈ O (H0)<br />
has a finite number of isolated singularities and defines a <str<strong>on</strong>g>Lefschetz</str<strong>on</strong>g><br />
fibrati<strong>on</strong>, that is,<br />
Elizabeth Gasparim <str<strong>on</strong>g>Lefschetz</str<strong>on</strong>g> <str<strong>on</strong>g>fibrati<strong>on</strong>s</str<strong>on</strong>g> <strong>on</strong> <strong>adjoint</strong> <strong>orbits</strong>