Connes' embedding conjecture and sums of hermitian squares (vol 217, pg 1816, 2008)

Burgdorf, SabineDykema, KenKlep, IgorSchweighofer, Markus2014-03-032014-03-032014-03-03201410.1016/j.aim.2013.10.020https://infoscience.epfl.ch/handle/20.500.14299/101291WOS:000330153100028Connes' embedding conjecture and sums of hermitian squares (vol 217, pg 1816, 2008)text::journal::journal article::research article