Real and imaginary zero conjecture for Wronskians of doubled Hermite partitions

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Let ν=(μ12,…,μn2)\nu=(\mu_1^2,\dots,\mu_n^2) be a doubled partition with distinct parts, where μi2\mu_i^2 denotes that the part μi\mu_i occurs twice, and let Wν(z)W_{\nu}(z) be its associated Wronskian of Hermite polynomials. Doubled-partition zero conjecture. The Wronskian Wν(z)W_{\nu}(z) has no real roots and has as many pure imaginary roots as there are odd numbers among μ1,…,μn\mu_1,\dots,\mu_n. This conjecture seeks an effective description of the real zeros of Wλ(z)W_{\lambda}(z) in terms of the corresponding Young diagram. It concerns the special class of doubled partitions and complements the preceding simplicity conjecture by specifying the location and count of roots in this case.

References

Primary source

G. Felder, A. D. Hemery and A. P. Veselov, “Zeroes of Wronskians of Hermite polynomials and Young diagrams”, arXiv:1005.2695 (2011).

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