Denis's strengthened Carlitz–Schanuel conjecture

Let A=Fq[θ]A=\mathbb{F}_q[\theta], let K=Fq(θ)K=\mathbb{F}_q(\theta), and let pp be the characteristic of Fq\mathbb{F}_q. For AA-linearly independent elements u1,,unCu_1,\ldots,u_n\in\mathbb{C}_\infty, consider the Carlitz exponential and its higher derivatives with respect to θ\theta, denoted by expC(i)\exp_C^{(i)}. Then

trdegKK(u1,,un,expC(u1),,expC(un),,expC(p1)(u1),,expC(p1)(un))pn.\operatorname{trdeg}_K K(u_1,\ldots,u_n,\exp_C(u_1),\ldots,\exp_C(u_n),\ldots,\exp_C^{(p-1)}(u_1),\ldots,\exp_C^{(p-1)}(u_n))\geq pn.

Denis's strengthened conjecture. The displayed transcendence-degree inequality holds.

The source describes this as a strengthening proposed by Denis to encompass algebraic-independence results involving derivatives in the parameter θ\theta. Its general status is left unresolved.

Sources & referencesView supporting material

Primary source

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

Progress summary

Never refreshed

Nothing recorded yet. Refresh searches the literature and the public web for attempts on this problem, and writes the first summary here.

Solutions 0

No solutions have been posted yet.