Compatibility of the Dolbeault Langlands equivalence with quasi-BPS decompositions

Let GG be a reductive group, let LG^{L}G be its Langlands dual, and let (χ,w)π1(G)×Z(G)(\chi,w)\in\pi_1(G)\times Z(G)^{\vee}. Consider the quasi-BPS semiorthogonal decompositions of the coherent category on semistable LG^{L}G-Higgs bundles and of the limit category for GG-Higgs bundles. Compatibility conjecture. Under the Dolbeault geometric Langlands equivalence, the semiorthogonal decompositions on the two sides are compatible. This is expected as part of the categorical Langlands correspondence and would imply the corresponding equivalence of quasi-BPS categories.

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Primary source

Tudor Pădurariu and Yukinobu Toda, “The Dolbeault geometric Langlands conjecture via limit categories”, arXiv:2508.19624 (2026).

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