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On indecomposable modules over the Virasoro algebra

Yucai Su

math.QAarXiv:math/0012013

Abstract

It is proved that an indecomposable Harish-Chandra module over the Virasoro algebra must be (i) a uniformly bounded module, or (ii) a module in Category O, or (iii) a module in Category O-, or (iv) a module which contains the trivial module as one of its composition factors.

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