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Arithmetic invariants of Eisenstein type arising from fundamental groups of once punctured elliptic curves

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Non-Abelian Fundamental Groups in Arithmetic Geometry

We discuss behaviors of certain arithmetic invariants (introduced by Bloch, Tsunogai) for fundamental groups of once-punctured elliptic curves. Anabelian geometry of tangential basepoints on M(1,1) and M(1,2) will also be brought into the view.

This talk is part of the Isaac Newton Institute Seminar Series series.

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