Endpoint-limit conjecture for recurrence-defined functions

From papers

Let {Fn}\{F_n\}, {Gn}\{G_n\} and {Hn}\{H_n\} be the sequences of real functions and let gng_n, hnh_n, gg, hh and Θ\Theta be as in the preceding pointwise convergence conjecture. Assume that

Θ=limnlimkFn(nk)\Theta=\lim_{n\to\infty}\lim_{k\to\infty}F_n(n-k)

exists. Endpoint-limit conjecture. Then Fn(nx)F_n(\lfloor nx\rfloor) converges pointwise on (0,1)(0,1) to a function fC1(0,1]f\in\mathcal{C}^1(0,1] satisfying

f(x)=g(x)+h(x)f(x),f(1)=Θ.f'(x)=-g(x)+h(x)f(x),\qquad f(1)=\Theta.

This is a refinement of the preceding conjectural convergence principle, replacing the endpoint condition imposed through the limiting differential equation by an iterated limit of the recurrence values. The source provides no resolution, so the claim remains open.

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Sources & referencesView supporting material

Primary source

L. Bayón, P. Fortuny, J. M. Grau, A. M. Oller-Marcén and M. M. Ruiz, “A new method for computing asymptotic results in optimal stopping problems”, arXiv:2205.08495 (2022).

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