November 29th, 2017, 03:13 PM  #1 
Member Joined: Nov 2016 From: Kansas Posts: 73 Thanks: 1  Gram Matrix
Prove the following: f((x1....xn)(y1....yn))= (x1....xn)*G*(y1....yn) where G is the Gram matrix 
December 4th, 2017, 11:20 AM  #2 
Math Team Joined: Jan 2015 From: Alabama Posts: 3,163 Thanks: 867 
This is one of several questions you have posted that baffle me! It is certainly NOT true that every function of two vectors can be written in that way. What conditions are you assuming on f? Is f linear? In a previous problem you asked for a proof that "Any max isotropic space has dim n". Any vector space has some dimension. What is special about "n" here? Last edited by Country Boy; December 4th, 2017 at 11:25 AM. 

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