智力高
发表于 2025-3-25 04:25:05
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FECT
发表于 2025-3-25 09:03:16
Cohomological Methods,ch as ... nef. It is then minimal in the sense that any bi-rational map from .. to a smooth projective variety is an isomorphism (Proposition 1.45). This is possible only if . is not uniruled and the (explicit) construction of .. is one of the purposes of Mori’s minimal model program.
abreast
发表于 2025-3-25 14:23:55
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seduce
发表于 2025-3-25 18:47:50
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执
发表于 2025-3-25 22:10:55
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令人悲伤
发表于 2025-3-26 02:43:26
The Rational Quotient,l curves (so that on a rationally chain-connected variety, two general points are ℛ-equivalent). The set of ℛ-equivalence classes is not in general an algebraic variety (there exist, for example, nonruled complex projective surfaces that contain countably many rational curves!). However, Campana rea
GROSS
发表于 2025-3-26 08:10:14
The Cone of Curves in the Smooth Case,tive curves. We prove here Mori’s theorem on the structure of the closure .of this cone, more exactly of the part where .. is negative. We show that it is generated by countably many ., and that these rays can only accumulate on the hyperplane .. = 0. We will give in the next chapter (§7.9) a totall
defray
发表于 2025-3-26 11:03:19
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indices
发表于 2025-3-26 12:57:14
ive faiths could be had by the dozen, when new messiahs were being unveiled in every political quarter, but when, from the relatively peaceful haven of Czechoslovakia’s First Republic, a violent struggle among them did not as yet appear imminent. Čapek’s novel, culminating in an apocalyptic war of a
flimsy
发表于 2025-3-26 17:15:44
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