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math.QA2001★ 4 cited
Twisted superYangians and their representations
C. Briot, E. Ragoucy
Starting with the superYangian Y(M|N) based on gl(M|N), we define twisted superYangians Y^+(M|N) and Y^-(M|N). Only Y^+(M|2n) and Y^-(2m|N) can be defined, and appear to be isomorp…
math.QA2000★ 21 cited
Twisted Yangians and folded W-algebras
E. Ragoucy
We show that the truncation of twisted Yangians are isomorphic to finite W-algebras based on orthogonal or symplectic algebras. This isomorphism allows us to classify all the finit…