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Note on Centrally Extended su(2/2) and Serre Relations

arXiv:0903.0511 · doi:10.1002/prop.200900052

Abstract

We point out that the nontrivial central extension of the superalgebra $su(2/2)$ is related to the some not so well-known Serre relations.

6 pages, LATEX, v2: added references; v3: small changes and added reference