Nadler–Tanaka's constructible-sheaf model for cotangent bundles
Nadler–Tanaka's constructible-sheaf model for cotangent bundles
Let be a space, let , let be the zero section, and set
Let denote the stable -category of perfect constructible sheaves of -modules on .
Nadler–Tanaka's constructible-sheaf conjecture. There is a canonical equivalence of stable -categories
which sends the constant sheaf on a point to the conormal Lagrangian .
This reformulates the cotangent-bundle conjecture in sheaf-theoretic terms and connects Lagrangian cobordisms with constructible and microlocal sheaf theory. The source states it as equivalent to the preceding cotangent-bundle conjecture and supplies no proof.
Sources & referencesView supporting material
Primary source
David Nadler and Hiro Lee Tanaka, “A stable infinity-category of Lagrangian cobordisms”, arXiv:1109.4835 (2020).
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