• 제목/요약/키워드: Enriques surfaces

검색결과 9건 처리시간 0.02초

Normal quintic enriques surfaces with moduli number 6

  • Kim, Yong-Gu
    • 대한수학회논문집
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    • 제10권3호
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    • pp.545-560
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    • 1995
  • In this paper, we show one family of normal quintic surfaces in $P^3$ which are birationally isomorphic to Enriques surfaces. We prove that the dimension of the moduli space of these Enriques surfaces is 6.

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NORMAL QUINTIC ENRIQUES SURFACES

  • Kim, Yong-Gu
    • 대한수학회지
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    • 제36권3호
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    • pp.545-566
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    • 1999
  • In this paper we describe normal quintic surfaces in P which are birationally isomorphic to Enriques surfaces. especially we characterize the sublinear systems which give rise to one of two Stagnaro's normal quintic surfaces in P3.

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THE HARBOURNE-HIRSCHOWITZ CONDITION AND THE ANTICANONICAL ORTHOGONAL PROPERTY FOR SURFACES

  • Abel Castorena;Juan Bosco Frias-Medina
    • 대한수학회지
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    • 제60권2호
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    • pp.359-374
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    • 2023
  • In this paper we give the first steps toward the study of the Harbourne-Hirschowitz condition and the anticanonical orthogonal property for regular surfaces. To do so, we consider the Kodaira dimension of the surfaces and study the cases based on the Enriques-Kodaira classification.

INVOLUTIONS ON SURFACES OF GENERAL TYPE WITH pg = 0 I. THE COMPOSED CASE

  • Shin, YongJoo
    • 대한수학회논문집
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    • 제28권3호
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    • pp.425-432
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    • 2013
  • Let S be a minimal surface of general type with $p_g(S)=q(S)=0$ having an involution ${\sigma}$ over the field of complex numbers. It is well known that if the bicanonical map ${\varphi}$ of S is composed with ${\sigma}$, then the minimal resolution W of the quotient $S/{\sigma}$ is rational or birational to an Enriques surface. In this paper we prove that the surface W of S with $K^2_S=5,6,7,8$ having an involution ${\sigma}$ with which the bicanonical map ${\varphi}$ of S is composed is rational. This result applies in part to surfaces S with $K^2_S=5$ for which ${\varphi}$ has degree 4 and is composed with an involution ${\sigma}$. Also we list the examples available in the literature for the given $K^2_S$ and the degree of ${\varphi}$.