例句與造句

1. This is an example of an anti-ample line bundle.
2. Moreover, they admit an ample line bundle and are thus projective.
3. In particular, every ample line bundle is nef.
4. Such criteria can be formulated using the notion of " very ample line bundles ".
5. The further condition required is called " very ample " ( cf . very ample line bundle ).
6. It's difficult to find ample line bundle in a sentence. 用ample line bundle造句挺難的
7. These vector bundles arise as the zeroth direct images of the adjoint of an ample line bundle over the fibration.
8. The "'Mumford Kempf theorem "'states that the fourth power of an ample line bundle is quadratically presented.
9. Quadratic relations were provided by Bernhard Riemann . "'Koizumi's theorem "'states the third power of an ample line bundle is normally generated.
10. In algebraic geometry, positive ( 1, 1 )-forms arise as curvature forms of ample line bundles ( also known as " positive line bundles " ).
11. The existence of some ample line bundle on " X " is equivalent to " X " being a projective variety, so a Fano variety is always projective.
12. The Kodaira embedding theorem claims that a positive line bundle is ample, and conversely, any ample line bundle admits a Hermitian metric with \ sqrt {-1 } \ Theta positive.
13. The choice of a projective embedding of " X ", " modulo " projective transformations is likewise equivalent to the choice of a very ample line bundle on " X ".
14. For a base field of characteristic zero, Giuseppe Pareschi proved a result including these ( as the cases " p " = 0, 1 ) which had been conjectured by Lazarsfeld : let " L " be an ample line bundle on an abelian variety " A ".
15. If " X " is the toric variety corresponding to the normal fan of " P ", then " P " defines an ample line bundle on " X ", and the Ehrhart polynomial of " P " coincides with the Hilbert polynomial of this line bundle.
16. Looking at the issue from the point of view of a given very ample line bundle giving rise to the projective embedding of " V ", such a line bundle ( invertible sheaf ) is said to be "'normally generated "'if " V " as embedded is projectively normal.
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