Standard Posted by DJBruce Posted on November 4, 2014 Posted under Cool Facts, Math Comments Leave a comment Fun With Toric Varieties (I) Toric varieties are fun things… Proposition: The blowup of at two points is isomorphic to blown up at one point. Proof: Fan for the blowup of P^2 at two points. Fan for the blowup of P^1 x P^1 at one point. Done. Advertisements Share this:TwitterFacebookGoogleLike this:Like Loading... Related Algebraic GeometryBlow UpsMathToric Post navigation ← What is group cohomology? Alexander Grothendieck (1928-2014) → Leave a Reply Cancel reply Enter your comment here... Fill in your details below or click an icon to log in: Email (required) (Address never made public) Name (required) Website You are commenting using your WordPress.com account. ( Log Out / Change ) You are commenting using your Twitter account. ( Log Out / Change ) You are commenting using your Facebook account. ( Log Out / Change ) You are commenting using your Google+ account. ( Log Out / Change ) Cancel Connecting to %s Notify me of new comments via email.