Generalised Kummer constructions and Weil restrictions
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We use a generalised Kummer construction to realise all but one known weight four newforms with complex multiplication and rational Fourier coefficients in smooth Calabi-Yau threefolds defined over the rational numbers. The Calabi-Yau manifolds are smooth models of quotients of the Weil restrictions of elliptic curves with CM of class number three.
12 pages; v2: added references, minor changes
12 pages; v2: added references, minor changes