English: An affine chart of the blowing-up of the affine plane at the origin. The exceptional curve is marked in red, the strict transforms of some lines through the origin are marked in gray.
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{{Information |Description={{en|1=an affine chart of the blowing-up of the affine plane at the origin}} |Source=Own work by uploader |Author=Robx |Date=20080711 |Permission= |other_versions= }} {{ImageUpload|full}} Category:Surfaces
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