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arxiv: 1106.4130 · v1 · pith:ENHO6ODCnew · submitted 2011-06-21 · 🧮 math.AG · math.NT

On cubic surfaces with a rational line

classification 🧮 math.AG math.NT
keywords surfacescubiclinerationalconstructdegreedescentdevelop
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We report on our project to construct non-singular cubic surfaces over $\bbQ$ with a rational line. Our method is to start with degree 4 Del Pezzo surfaces in diagonal form. For these, we develop an explicit version of Galois descent.

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