Wavefront set conjecture for generic local Langlands parameters

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Let FF be a local field of characteristic zero, let GG be a classical group over FF, and let π∈ΠF(G)\pi\in\Pi_F(G) have a generic local LL-parameter. For each symbol □\square, let WF⁡□(π)s−max\operatorname{WF}_{\square}(\pi)^{s-\mathrm{max}} denote the maximal members of the corresponding wavefront set under the FF-stable topological order over NF(g)∘\mathcal{N}_F(\mathfrak{g})_\circ, and let WF⁡□(π)r−max\operatorname{WF}_{\square}(\pi)^{r-\mathrm{max}} denote the maximal members under the FF-rational topological order. Wavefront set conjecture. The identities

WF⁡tr(π)s−max=WF⁡ari(π)s−max=WF⁡wm(π)s−max\operatorname{WF}_{\mathrm{tr}}(\pi)^{s-\mathrm{max}}=\operatorname{WF}_{\mathrm{ari}}(\pi)^{s-\mathrm{max}}=\operatorname{WF}_{\mathrm{wm}}(\pi)^{s-\mathrm{max}}

and

WF⁡tr(π)r−max=WF⁡ari(π)r−max=WF⁡wm(π)r−max\operatorname{WF}_{\mathrm{tr}}(\pi)^{r-\mathrm{max}}=\operatorname{WF}_{\mathrm{ari}}(\pi)^{r-\mathrm{max}}=\operatorname{WF}_{\mathrm{wm}}(\pi)^{r-\mathrm{max}}

should both hold. This conjecture seeks to identify analytic, arithmetic, and generalized-Whittaker descriptions of maximal wavefront data for generic parameters; the paper presents substantial progress toward it for real classical groups.

References

Primary source

Dihua Jiang, Dongwen Liu, Zhikang Luo, Jia-Jun Ma and Lei Zhang, “Arithmetic Wavefront Set and Microlocal Structure of Harish-Chandra Character”, arXiv:2606.05735 (2026).

Additional references

2 papers in this index state this conjecture (2022–2026). The statement above is taken from the most recent of them; the others are arXiv:2207.04700.

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