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Title Transcription
アル シュ ノ キョクメン ノ ジコ ドウケイ シャゾウ ト ドウヘン チョクセン ソク ニツイテ
Title Alternative (English)
Automorphisms of Some Surfaces and Equivariant Line Bundles
File
language
eng
Author
Matsunaga, Hiromichi
Description
In §1 it is proved that any elliptic surface without exceptional curve admits a canonical involution, which is an extension of the involution in [7]. Since a general elliptic curve admits the unique non trivial involutive isomorphism, then we will call this a canonicall one. By making use of a lemma in III [2], it is easy to construct the involution but in order to find invariant divisors, we make it concretely. Non singular surfaces of degree 4 in P^3 are K3 surfaces and one of them is a singular K3 surface. We deduce an informatiom about the homotopical cell structure of a K3 surface. Automorphisms of this surface are constructed in §2. Some of them translate a global section to another section and others do not preserve the elliptic structure. In the last section some remarks are given about clliptic modular sufaces which are singular K3 surfaces.
Journal Title
Memoirs of the Faculty of Science, Shimane University
Volume
13
Start Page
23
End Page
29
ISSN
03879925
Published Date
1979-12-20
NCID
AN00108106
Publisher
島根大学理学部
Publisher Aalternative
The Faculty of Science, Shimane University
NII Type
Departmental Bulletin Paper
OAI-PMH Set
Faculty of Science and Engineering
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