On the ‐action on G‐semistable locally free sheaves on |
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Authors: | Michael Miesener |
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Institution: | Leibniz‐Univertit?t Hannover, Institut für algebraische Geometrie, , Welfengarten 1, 30167 Hannover, Germany |
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Abstract: | We show that the divisor of jumping lines of any , the moduli space of Gieseker‐semistable locally free sheaves of rank 2 on with , is reduced for . By a lemma of Artamkin this implies, that there are exactly ‐orbits in , the subset of those , which are trivial at a certain line . |
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Keywords: | Stable sheaves Cremona group 14E07 |
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