1. Nov 10, 2011 #1

   romsofia

   

   http://arxiv.org/PS_cache/arxiv/pdf/1001/1001.3668v2.pdf
   
   Equation (4), what does the symbol that looks like AND mean? I know it's not AND because it would make absolutely no sense in this case.
   
   Thanks for any help!

    

   romsofia, Nov 10, 2011
2. 
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3. Nov 10, 2011 #2

   HallsofIvy

   

   Science Advisor

   That is the "wedge" operator on vectors: http://mathworld.wolfram.com/WedgeProduct.html

    

   HallsofIvy, Nov 10, 2011
4. Nov 10, 2011 #3

   romsofia

   

   Thank you very much!

    

   romsofia, Nov 10, 2011

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