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A new proof of Branson’s classification of elliptic generalized gradients

URN to cite this document:
urn:nbn:de:bvb:355-epub-205075
Pilca, Mihaela
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Date of publication of this fulltext: 18 Apr 2011 06:58


Abstract

We give a representation theoretical proof of Branson's classification, [4], of minimal elliptic sums of generalized gradients. The original proof uses tools of harmonic analysis, which as powerful as they are, seem to be specific for the structure groups SO(n) and Spin(n). The different approach we propose is a local one, based on the relationship between ellipticity and optimal Kato constants ...

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