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We study codes with a single check element derived from group rings, namely, checkable codes. The notion of a codecheckable group ring is introduced.
The Witt group of non-degenerate braided fusion categories
Witt group non-degenerate braided fusion categories
2010/12/3
We give a characterization of Drinfeld centers of fusion categories as non-degenerate braided fusion categories containing a Lagrangian algebra.Further we study the quotient of the monoid of non-degen...