Horikawa surfaces with maximal Picard numbers
Horikawa surfaces with maximal Picard numbers
复制标题
具有最大皮卡数的堀川曲面
DOI:
10.1007/bf01456942
复制
发表时间:
1982
影响因子:
1.4
通讯作者:
U. Persson
中科院分区:
文献类型:
--
作者:
U. Persson
Given a compact non-singular surface X, we can consider its Neron-Severi group, henceforward denoted by NS (X), of divisors rood numerical equivalence. It is well-known (see eg [1, p. 461]) that we can identify NS (X) with Hz (X, Z) c~ H i'i (X, C); via the chern map c 1: Hi ((9*)~ H2 (X, 7l) which associates to each divisor D an integral 2-form ct (D)-the chern class of D. The Picard number of X, will be denoted by o (X), and defined to be equal to dimQNS (X)|