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Geometric Arveson-Douglas conjecture for the Hardy space and a related compactness criterion

  • Vanderbilt University

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

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 languageEnglish
Article number107890
JournalAdvances in Mathematics
Volume388
DOIs
StatePublished - Sep 17 2021

Keywords

  • Compactness criterion
  • Essential normality
  • Quotient module

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