2 citations · 4 across the 4 of their papers we have counts for
4 papers
Effective base point freeness on normal surfaces
Takeshi Kawachi
We give the new effective criterion for the global generation of the adjoint bundle on normal surfaces with a boundary. We could make the invariant δsmall a bit more on log-termina…
Effective base point freeness on a normal surface
Takeshi Kawachi
This treats the base-point-freeness of the adjoint bundles on normal surfaces with a boundary. This is an extension of the non-relative version of the theorem of Ein-Lazarsfeld-Mas…
Higher dimensional examples of manifolds whose adjoint bundles are not spanned
Takeshi Kawachi
Let be an -dimensional polarized variety. Fujita's conjecture says that if then the adjoint bundle is spanned and is very ample. There are…
On freeness theorem of the adjoint bundle on a normal surface
Takeshi Kawachi
We extend Reider's freeness criterion to normal surfaces of characteristic 0. Let Y be a normal surface. Let D be a nef divisor on Y such that K_Y+D is a Cartier divisor. Let x be…