Theorem 4.5 [0322]
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Theorem 4.5
Let be an elliptically fibred K3 surface with section and 24 singular fibres over as above. Then there exists open sets , , each diffeomorphic to a disc, , positive constants and such that, for all , for any elliptic fibration with Jacobian with holomorphic 2-form with , and for any Kähler class on with and , there exists a Kähler metric representing on with the following properties:
(1) is a semi-flat metric (not necessarily the standard one).
(2) where is an Ooguri–Vafa metric and denotes translation by a (not necessarily holomorphic) section.
(3) If , then
and
where denotes the Laplacian with respect to .
(4)
(5) With the Riemannian metric induced by , .
(6) If denotes the Riemann curvature tensor, then
| as , |
and on any non-singular fibre, there exists a constant depending on the fibre such that