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Duality Options
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Miii
#1 Posted : Wednesday, August 10, 2011 1:16:24 AM
Rank: Newbie

Groups: Registered Users

Joined: 8/10/2011
Posts: 1

A quadric is given by x^T A x, A in R^nxn and symmetric. In case A is regular the dual quadric can be given by x^t D^T A^-1 D x, with a duality matrix D.  

My question is there a way to dualize the quatric if A is not regular?!?
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