Let E be an elliptic curve, and let Ln be the Kummer extension generated by a primitive pnth root of unity and a pn-th root of a for a fixed a ∈ Q − {±1}. A detailed case study by Coates, Fukaya, Kato and Sujatha and V. Dokchitser has led these authors to predict unbounded and strikingly regular growth for the rank of E over Ln in certain cases. The aim of this note is to explain how some of th...

In the early eighties tools from algebraic geometry were applied by V. Goppa to construct linear codes using algebraic curves over finite fields, see [7]. Nowadays these codes are called algebraic-geometric codes, AG codes for short. The starting point in the construction of an AG code is a projective, absolutely irreducible, non singular algebraic curve X of genus g ≥ 1 defined over the finite...

We use a generalised Kummer construction to realise all but one weight four newforms with CM and rational Fourier coefficients in a smooth (non–rigid) Calabi–Yau threefold defined over Q. The Calabi–Yau manifolds are smooth models of quotients of the Weil restrictions of elliptic curves with CM of class number three.