Abstract. – Néron showed that an elliptic surface with rank 8, and with base B = P1â„š, and geometric genus =0, may be obtained by blowing up 9 points in the plane. In this paper, we obtain ...
Let E → X be an elliptic modular surface and S the tangential ruled surface of a projective embedding of X. The divisor that collects the involutions of the elliptic fibers of E is precisely the ...
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