Is covariant star product unique?
arXiv:1101.4642
Abstract
We give a nontechnical introduction to the problem of non-uniqueness of star products and describe a covariant resolution of this problem. Some implications (e.g., for noncommutative gravity) and further prospects are discussed.
10 pages, a talk at the Workshop on Non Commutative Field Theory and Gravity, Corfu, 2010