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The virtual Todd class formula for almost perfect obstruction theories
Suppose that $f\colon X\to Y$ is a morphism equipped with an almost perfect obstruction theory with virtual tangent class $[T_{X/Y}]-[\mathcal{O}b_X]\in K_0(X)$ . Assume that this c…
Conjectureopenobstruction-theories riemann-roch virtual-intersection-theoryarXiv posted 2 days ago

The virtual Todd class formula for almost perfect obstruction theories