The Fukaya-category elliptic-curve summand conjecture for the blowup examples

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Let XX be as in Examples 4.1 and 4.2, and let C⊂P3C\subset \mathbb{P}^3 be the intersection of quadrics defined by

x02+x12+x2x3=0,x0x1+x22+x32=0.x_0^2+x_1^2+x_2x_3=0,\qquad x_0x_1+x_2^2+x_3^2=0.

Fukaya-category elliptic-curve summand conjecture. The Fukaya category of XX should contain a direct summand equivalent to the derived category of sheaves on a genus-one curve whose Jacobian is isogenous to that of CC. This predicts a mirror-symmetric categorical manifestation of the elliptic curve associated with the quantum-cohomological formal group of the blowup examples; establishing such a summand and its precise geometric realization remains open.

References

Primary source

Paul Seidel, “Formal groups and quantum cohomology”, arXiv:1910.08990 (2022).

Additional references

3 papers in this index state this conjecture (2004–2019). The statement above is taken from the most recent of them; the others are arXiv:1806.11101, arXiv:math/0412149.

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