Abstract
We consider a class of analytic subsets M˜ of an open neighborhood of the closed unit ball in Cn. Such an M˜ gives rise to a submodule R and a quotient module Q of the Hardy module H2(S) on the unit sphere S⊂Cn. We show that, as predicted by the geometric Arveson-Douglas conjecture, the quotient module Q is p-essentially normal for p>d=dimCM˜. We further show that, more interestingly, the quotient module Q exhibits a behavior that is only found on the Bergman space and the Fock space: an operator A in the Toeplitz algebra on Q is compact if and only if its Berezin transform vanishes near M˜∩S.
| Original language | English |
|---|---|
| Article number | 107890 |
| Journal | Advances in Mathematics |
| Volume | 388 |
| DOIs | |
| State | Published - Sep 17 2021 |
Keywords
- Compactness criterion
- Essential normality
- Quotient module
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