Operator-theoretic generalization of Denis–Schanuel's conjecture

Let q=peq=p^e with e>0e>0, let s0s\geq0, let Ks=Fp(θ,t1,,ts)K_s=\mathbb{F}_p(\theta,t_1,\ldots,t_s), and let LsL_s be the smallest μ\mu-difference subfield of Ks\mathbb{K}_s containing KsK_s and every element regularly μ\mu-algebraic over KsK_s. For f1,,fnKsf_1,\ldots,f_n\in\mathbb{K}_s, write gi=expC(fi)g_i=\exp_C(f_i). If the fif_i are linearly independent over Fq(t1,,ts)[θ]\mathbb{F}_q(t_1,\ldots,t_s)[\theta], then nn of the 2n2n elements

f1,,fn,g1,,gnf_1,\ldots,f_n,g_1,\ldots,g_n

are regularly μ\mu-independent over LsL_s.

Operator-theoretic generalization of Denis–Schanuel's conjecture. The asserted regular μ\mu-independence holds.

The conjecture refines the earlier transcendence-degree formulations by incorporating the difference operator μ\mu. The source gives no proof or resolution.

Sources & referencesView supporting material

Primary source

F Pellarin, “On a variant of Schanuel conjecture for the Carlitz exponential”, arXiv:1610.04048 (2017).

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