The Jacobian Conjecture fails for pseudo-planes
The Jacobian Conjecture fails for pseudo-planes
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雅可比猜想对于伪平面失败
DOI:
10.1016/j.aim.2018.09.020
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发表时间:
2017
影响因子:
1.7
通讯作者:
Karol Palka
中科院分区:
文献类型:
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作者:
A. Dubouloz;Karol Palka
A smooth complex variety satisfies the Generalized Jacobian Conjecture if all its étale endomorphisms are proper. We study the conjecture for Q-acyclic surfaces of negative logarithmic Kodaira dimension. We show that G-equivariant counterexamples for infinite group G exist if and only if G= C⁎ and we classify them relating them to Belyi–Shabat polynomials. Taking universal covers we get rational simply connected C⁎-surfaces of negative logarithmic Kodaira dimension which admit non-proper C⁎-equivariant étale endomorphisms. We prove also that for every integers r≥ 1, k≥ 2 the Q-acyclic rational hyperplane u (1+ u r v)= w k, which has fundamental group Z k and negative logarithmic Kodaira dimension, admits families of non-proper étale endomorphisms of arbitrarily high dimension and degree, whose members remain different after dividing by the action of the automorphism group by left and right composition.
DOI:
--
发表时间:
2022
期刊:
影响因子:
--
作者:
Mitsuyasu Hashimoto;橋本 光靖
通讯作者:
橋本 光靖
DOI:
--
发表时间:
2007
期刊:
影响因子:
--
作者:
K. Masuda;M. Miyanishi;K.Masuda;M. Miyanishi;M.Miyanishi;M. Miyanishi;M.Miyanishi;K. Masuda;M. Miyanishi;K.Masuda;M.Miyanishi;K. Masuda;K. Masuda;M. Miyanishi;K. Masuda;K. Masuda;M. Miyanishi;K.Masuda;M.Miyanishi;M. Miyanishi
通讯作者:
M. Miyanishi