Ganatra–Kuo–Li–Wu's positive-wrapping conjecture for sheaf kernels

Let XX and YY be manifolds, let Λ\Lambda and Σ\Sigma be conic conditions defining the relevant microsupported sheaf categories, and let L\Sh(X×Y)L \in \Sh(X \times Y) be a constructible sheaf with perfect stalks. The sheaf LL need not be microsupported in Λ×Σ-\Lambda \times \Sigma. Let MΛ×Σ+(L)\mathfrak{M}^{+}_{-\Lambda \times \Sigma}(L) denote the positive wrapping functor applied to LL. Ganatra–Kuo–Li–Wu's positive-wrapping conjecture. Certain geometric constraints on \ssupp(L)\ssupp(L) guarantee that

MΛ×Σ+(L)()\mathfrak{M}^{+}_{-\Lambda \times \Sigma}(L) \ast (-)

preserves compact objects. The supplied text does not specify those geometric constraints or state whether this more general conjecture has been resolved.

Sources & referencesView supporting material

Primary source

Yuxuan Hu, “Proper kernels in microlocal sheaf theory”, arXiv:2511.02677 (2025).

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