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Extension Theory of Hilbert Modules over Semigroups

โœ Scribed by Kunyu Guo


Publisher
John Wiley and Sons
Year
2002
Tongue
English
Weight
274 KB
Volume
246-247
Category
Article
ISSN
0025-584X

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Curvature Invariant for Hilbert Modules
โœ Gelu Popescu ๐Ÿ“‚ Article ๐Ÿ“… 2001 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 308 KB

We introduce a notion of relative curvature (resp. Euler characteristic) for finite rank contractive Hilbert modules over CF + n , the complex free semigroup algebra generated by the free semigroup F + n on n generators. Asymptotic formulas and basic properties for both the curvature and the Euler c