研究spectrum—generating超代数的一类子代数,确定了这类子代数的低阶上同调群以及自同构群.这类子代数对于讨论N=2-超共形代数上Harish—Chandea模的分类很有意义.
One subalgebra of spectrum-generating superalgebra is studied in this paper. And low order cohomol- ogy group and the automorphism group of this algebra are also determined in the paper. This subalgebra is help- ful to classified Harish-Chandea modules over the N =2 superconformal algebra.