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Are extensions of linear algebraic groups (over a field) themselves linear algebraic?

oct 12 at 16:26 Angelo 19.6k●3●47●75

 
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Central extensions of group schemes

aug 24 11 at 4:28 Torsten Ekedahl 17.9k●1●42●68

 
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Equivalence between parabolic bundles and bundles on orbicurves

aug 13 11 at 7:32 Angelo 19.6k●3●47●75