Weak abelian Schanuel conjecture

Let AA be an abelian variety of dimension gg over Q\overline{\mathbb{Q}}, with exponential map expA:CgA(C)\exp_A:\mathbb{C}^g\to A(\mathbb{C}), period and quasi-period matrix Λ~A\widetilde{\Lambda}_A, and vector of abelian zeta integrals ζA(u)\zeta_A(u). Let uCgu\in\mathbb{C}^g, and let HH be the smallest algebraic subgroup of AA containing expA(u)\exp_A(u). Write Q(Λ~A)\overline{\mathbb{Q}}(\widetilde{\Lambda}_A) for the field generated over Q\overline{\mathbb{Q}} by the periods and quasi-periods.

Weak abelian Schanuel conjecture.

trdegQ(Λ~A)Q(Λ~A,expA(u),u,ζA(u))2dim(H).\operatorname{trdeg}_{\overline{\mathbb{Q}}(\widetilde{\Lambda}_A)}\overline{\mathbb{Q}}(\widetilde{\Lambda}_A,\exp_A(u),u,\zeta_A(u))\ge 2\dim(H).

This is presented as a weaker version of André's generalised period conjecture and is an abelian analogue of Schanuel's conjecture. The source does not state a resolution of this formulation, so it remains open.

Sources & referencesView supporting material

Primary source

Patrice Philippon, Biswajyoti Saha and Ekata Saha, “An abelian analogue of Schanuel's conjecture and applications”, arXiv:1811.05167 (2022).

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