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PGL(4) acts transitively on M(-1,2). (English) Zbl 0515.14012


MSC:

14F05 Sheaves, derived categories of sheaves, etc. (MSC2010)
14D20 Algebraic moduli problems, moduli of vector bundles
57R20 Characteristic classes and numbers in differential topology
14L30 Group actions on varieties or schemes (quotients)

Citations:

Zbl 0448.14004