为了范畴化U(so(8,C))向量表示的n次张量积,定义了一般线性李代数(gln)的伯恩斯坦-盖尔芬德-盖尔芬德(Bernstein-Gelfand-Gelfand,BGG)范畴@的若干子范畴,这些子范畴Grothendieck群的复化范畴化了D4型李代数包络代数向量表示n次张量积的底空间;定义了BGG范畴@上的一系列投射函子用于范畴化U(so(8,C))在张量积上的作用;得到hi(1≤i≤4)可由一对函子(gl+,gl-)(1≤i≤4)范畴化,ei(f)i(1≤i≤3)分别由εi、(F)(1≤i≤3)范畴化,e4(f)4分别由一对函子(ε4+,ε4-)((F)4+,(F)-)范畴化.
To categorify the n-tensor products of vector representation of U (so (8, C )), somesubcategoriees of Bernstein-Gelfand-Gelfand (BGG) category @ of the general linear Lie algebra gln weredefined. The complexifications of their Grothendieck groups were used for categorifing base spaces of n- tensor products of vector representation. And some projective endfunctors of BGG category @, which wereused for categorifing the action of U ( so (8, C) ) on n-tensor products of vector representation, were defined. It was got that hi (1≤i≤4) can be c ategorified by a pair of functors (gl+,gl-)(1≤i≤4),ei(f)i(1≤i≤3), can be categorified by εi、(F)(1≤i≤3), e4 ,f4 can be categorified by a pair of functors (ε4+,ε4-)((F)4+,(F)-), respectively.