T-cell
发表于 2025-3-21 16:06:17
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侵略
发表于 2025-3-21 20:46:58
Book 1989Our mutual cooperation began at the University of Warwick and the Max Planck Institute of Mathematics in 1982/83. Most of the work in this volume was done during the visit of the first author at the University of Michigan in 1984-1986. The second author was supported during all these years by grants from the National Science Foundation.
提升
发表于 2025-3-22 03:06:44
https://doi.org/10.1007/978-3-319-50775-0ucted a family of Enriques surfaces represented by congruences of lines in P. associated to webs of quadrics (see .). We will discuss this construction in Part II of this book. In . Enriques observed that every Enriques surface can be obtained as a quotient of a surface of type K3 (in modern termino
解冻
发表于 2025-3-22 05:14:01
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affluent
发表于 2025-3-22 09:17:52
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Harass
发表于 2025-3-22 15:31:19
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Harass
发表于 2025-3-22 20:26:55
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Crepitus
发表于 2025-3-22 23:11:31
https://doi.org/10.1057/9780230286757Let K be an algebraically closed field of arbitrary characteristic p. In this section we recall the main results of the classification of nonsingular projective surfaces over K. We refer to . for the proofs of all the assertions peculiar to the case of positive characteristic and to general textbooks . for the case of characteristic zero.
拔出
发表于 2025-3-23 03:00:22
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做事过头
发表于 2025-3-23 09:04:02
https://doi.org/10.1007/978-1-349-03385-0Let . be an effective divisor on a nonsingular projective surface X with irreducible components R.. We say that D is of . if