On the degree growth of birational mappings in higher dimension
On the degree growth of birational mappings in higher dimension
复制标题
高维双有理映射的度增长
DOI:
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发表时间:
2004
期刊:
影响因子:
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通讯作者:
Kyounghee Kim
中科院分区:
文献类型:
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作者:
Eric Bedford;Kyounghee Kim
Let ƒ be a birational map of Cd,and consider the degree complexity or asymptotic degree growth rate δ(ƒ) = limn → ∞ (deg(ƒn))1/n.We introduce a family of elementary maps, which have the form ƒ = L o J, where L is (invertible) linear, and J(x1−1,..., xd) = (x1−1,...,xd−1.We develop a method of regularization and show how it can be used to compute δ for an elementary map.