Compatibility of global and critical obstruction theories for local Quot schemes
Compatibility of global and critical obstruction theories for local Quot schemes
Let be the smooth toric threefold, let be the affine chart associated with a torus fixed point, and let be the sheaf under consideration. Let be the global perfect obstruction theory on , and let
be the open immersion. Denote by the critical obstruction theory on the local Quot scheme.
Compatibility conjecture. The restriction agrees, as a symmetric perfect obstruction theory, with .
This would identify the global obstruction theory with the critical-locus obstruction theory on each local chart. The source notes that the general result is open, although the corresponding K-theory class comparison is known.
Sources & referencesView supporting material
Primary source
Nadir Fasola, Sergej Monavari and Andrea T. Ricolfi, “Higher rank K-theoretic Donaldson-Thomas theory of points”, arXiv:2003.13565 (2021).
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