Applications of removing the simplicial-cone and subgroup restrictions in the higher-dimensional embedding

Identify concrete mathematical applications that arise from extending the almost embedding μ^γ(T^*M) → Sh(M, Λ_0^γ) beyond the case where γ ⊂ ℝ^n is a simplicial closed polyhedral proper convex cone and any associated subgroup restrictions on G are imposed, specifically determining how such a generalization to arbitrary convex cones γ and more general subgroups G ⊂ ℝ^n yields new insights or results.

Background

In the higher-dimensional variant, the paper defines μγ(T*M) using ℝn-equivariant sheaves with microsupport controlled by the polar cone γ∨, and proves an almost embedding μγ(T*M) ↪ Sh(M, Λ_0γ) under the assumption that γ is simplicial. This result generalizes the one-dimensional Tamarkin-Novikov correspondence to certain multidimensional settings.

The author notes that, although it seems feasible to lift the simplicial assumption on γ (and potentially relax restrictions on the subgroup G), they currently do not know of any applications of such a broader generalization. The open issue is therefore not the existence of the generalization per se, but the absence of known use-cases or consequences that would motivate or exploit it.

References

If n=2, every γ is simplicial. It should be possible to remove the restriction on γ and G. But, so far, we don't know any application of such a generalization.

Almost equivalences between Tamarkin category and Novikov sheaves  (2406.08245 - Kuwagaki, 2024) in Remark, Section “Variant 3: Higher-dimensional version”