The split semi-elliptic conjecture

From papers

Let Ω\Omega be a lattice in C\mathbb{C}, let kk be the field of endomorphisms of the associated elliptic curve, and let g2,g3g_2,g_3 be its invariants. Let t1,,tst_1,\dots,t_s be Q\mathbb{Q}-linearly independent complex numbers, and let p1,,pnp_1,\dots,p_n be kk-linearly independent elements of CΩ\mathbb{C}\smallsetminus\Omega. Define

K=Q(t1,,ts,et1,,ets,g2,g3,p1,,pn,(p1),,(pn),ζ(p1),,ζ(pn)).K=\mathbb{Q}(t_1,\dots,t_s,\mathrm{e}^{t_1},\dots,\mathrm{e}^{t_s},g_2,g_3,p_1,\dots,p_n,\wp(p_1),\dots,\wp(p_n),\zeta(p_1),\dots,\zeta(p_n)).

Split semi-elliptic conjecture. The transcendence degree of KK is at least s+2ns+2n, unless 2πiQQt1++Qts2\pi\mathrm{i}\mathbb{Q}\subseteq\mathbb{Q}t_1+\cdots+\mathbb{Q}t_s and Ωkp1++kpn\Omega\subseteq kp_1+\cdots+kp_n, in which case it is at least s+2n1s+2n-1. This conjecture unifies exponential and elliptic Schanuel-type statements and is shown in the source to be equivalent to the elliptico--toric conjecture; it remains open.

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Sources & referencesView supporting material

Primary source

Cristiana Bertolin and Michel Waldschmidt, “Variations on Schanuel's Conjecture for elliptic and quasi-elliptic functions I: the split case”, arXiv:2504.14048 (2025).

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