K3 surfaces with Picard number 2, Salem polynomials and Pell equation
K3 surfaces with Picard number 2, Salem polynomials and Pell equation
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具有皮卡德数 2、塞勒姆多项式和佩尔方程的 K3 曲面
DOI:
10.1016/j.jpaa.2019.05.015
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发表时间:
2020
期刊:
影响因子:
--
通讯作者:
JongHae Keum and Kwangwoo Lee
中科院分区:
文献类型:
--
作者:
K. Hashimoto;JongHae Keum and Kwangwoo Lee
If an automorphism of a projective K3 surface with Picard number 2 is of infinite order, then the automorphism corresponds to a solution of Pell equation. In this paper, by solving this equation, we determine all Salem polynomials of symplectic and anti-symplectic automorphisms of projective K3 surfaces with Picard number 2.