Projective models of Shioda modular surfaces
- Cite this article as:
- Barth, W. & Hulek, K. Manuscripta Math (1985) 50: 73. doi:10.1007/BF01168828
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In this paper we consider divisor classes on elliptic modular surfaces S(n) and their associated linear systems. A principal role is played by divisors I which have the property that nI (resp. n/2I) is linearly equivalent to the sum of the n2 sections if n is odd (resp. even). Our main result is the description of four different projective realizations of S(5). Some results concerning S(3) and S(4) are also discussed.