A hyperbolic lower bound for the Kilbas–Saigo function at the boundary parameter

From papers

Let α(0,1]\alpha\in(0,1], m>0m>0, and x0x\geq 0. Define the Kilbas–Saigo function Eα,m,lE_{\alpha,m,l} by its usual power series, and let GG denote the Barnes-type function used in the source. The conjectured lower bound. One has

Eα,m,m1α(x)1(1+(αm)αm+1(Γ(1+α)G(1α;αm)G(1+α;αm))mm+1x)1+1m.E_{\alpha,m,m-\frac{1}{\alpha}}(-x)\geq \frac{1}{\left(1+(\alpha m)^{-\frac{\alpha}{m+1}}\left({\Gamma}(1+\alpha)G(1-\alpha;\alpha m)G(1+\alpha;\alpha m)\right)^{-\frac{m}{m+1}}x\right)^{1+\frac{1}{m}}}.

This is expected to complement the preceding uniform upper bound at the boundary value l=m1/αl=m-1/\alpha; the source indicates that the constant is suggested by the asymptotic behaviour of the associated density, but does not establish the inequality.

Progress summary

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

Sources & referencesView supporting material

Primary source

Lotfi Boudabsa and Thomas Simon, “Some properties of the Kilbas-Saigo function”, arXiv:2012.05666 (2020).

Solutions 0

No solutions have been posted yet.