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math.QA2007★ 32 cited
Quantisation of twistor theory by cocycle twist
S. Brain, S. Majid
We present the main ingredients of twistor theory leading up to and including the Penrose-Ward transform in a coordinate algebra form which we can then `quantise' by means of a fun…
math.QA2007★ 2 cited
Bar categories and star operations
E. J. Beggs, S. Majid
We introduce the notion of `bar category' by which we mean a monoidal category equipped with additional structure formalising the notion of complex conjugation. Examples of our the…