Systems, Approximation, Singular Integral Operators, and Related Topics 2001
DOI: 10.1007/978-3-0348-8362-7_10
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Some geometric invariants from resolutions of Hilbert modules

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Cited by 5 publications
(2 citation statements)
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“…Thus quasifree Hilbert modules can be characterized up to unitary equivalence by the curvature and a finite set of partial derivatives of curvature over Ω. In a series of papers [20], [22], [21], [23], the authors along with Verughese, have related the geometrical invariants for Hilbert modules in a resolution. In particular, one shows for the quotient module defined by the functions in a quasi-free module R that vanish to some order along a hypersurface, that the geometric invariants for the spectral sheaf for the quotient are determined by those for the quasi-free sheaf in the form of longitudinal curvature, transverse curvature and a second fundamental form involving an appropriate jet bundle.…”
Section: Usefulness Of Resolutionsmentioning
confidence: 99%
“…Thus quasifree Hilbert modules can be characterized up to unitary equivalence by the curvature and a finite set of partial derivatives of curvature over Ω. In a series of papers [20], [22], [21], [23], the authors along with Verughese, have related the geometrical invariants for Hilbert modules in a resolution. In particular, one shows for the quotient module defined by the functions in a quasi-free module R that vanish to some order along a hypersurface, that the geometric invariants for the spectral sheaf for the quotient are determined by those for the quasi-free sheaf in the form of longitudinal curvature, transverse curvature and a second fundamental form involving an appropriate jet bundle.…”
Section: Usefulness Of Resolutionsmentioning
confidence: 99%
“…Remark 2.11 (Resolutions of modules over function algebras). We also point out that our use of the terms resolution and free resolution differs substantially from usage of similar terms in work of Douglas, Misra and Varughese [DMV00], [DMV01], [DM03a], [DM03b]. For example, in [DM03b], the authors consider Hilbert modules over certain algebras A(Ω) of analytic functions on bounded domains Ω ⊆ C d .…”
Section: Statement Of Resultsmentioning
confidence: 99%