Gamma-function singularity conjecture for beta-ensemble free energies

About 16 years old · traced to

Let Vd+1(x)V_{d+1}(x) be any potential of degree d+1d+1, and let ϵ~i{\widetilde{\epsilon}}_i be the occupation numbers on the cycles A~i{\widetilde{{\cal A}}}_i, for i=1,…,di=1,\ldots,d. Here [∫log⁡Γ](x)[\int\log\Gamma](x) denotes an antiderivative of log⁡Γ(x)\log\Gamma(x). Gamma-function singularity conjecture. The singular part of F0{\mathcal F}_0 has the form

sing⁡F0=ℏ2∑i=1d12[∫log⁡Γ](ϵ~i/ℏ).\operatorname{sing}{\mathcal F}_0=\hbar^2\sum_{i=1}^d\frac{1}{2}[\int\log\Gamma]({\widetilde{\epsilon}}_i/\hbar).

This conjecture proposes a universal description of the singular part of the genus-zero free energy in terms of the occupation numbers of the cycles. The preceding analysis derives the corresponding one-cycle behavior and matches the expected large-positive-argument Gaussian matrix-model asymptotics, but the general statement is not resolved here.

References

Primary source

L. O. Chekhov, B. Eynard and O. Marchal, “Topological expansion of beta-ensemble model and quantum algebraic geometry in the sectorwise approach”, arXiv:1009.6007 (2010).

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.