Alexander Polishchuk
Published 2009-11-15, updated 2009-11-24Version 3
We compute explicitly the A-infinity structure on the Ext-algebra of the collection $({\mathcal O}_C, L)$, where $L$ is a line bundle of degree 1 on an elliptic curve $C$. The answer involves higher derivatives of Eisenstein series.
Comments: 13 pages, 3 figures; v3: added remark on the limit at the cusp
The A-infinity algebra of an Elliptic Curve and the j-invariant
A-infinity algebras associated with elliptic curves and Eisenstein-Kronecker series
One-point covers of elliptic curves and good reduction
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