TensorProductVectorSpace ( Irrep ( A 1 ) ( { 1 } ) ) BRSplitTrace ( 1 , { } ) ( A 1 , Irrep ( A 1 ) ( { 1 } ) , FundamentalBasis , 1 ) + BRSplitTrace ( 1 , { } ) ( A 1 , Irrep ( A 1 ) ( { 1 } ) , FundamentalBasis , 2 ) Irrep ( A 1 ) ( { 1 } ) {\displaystyle {\textrm {TensorProductVectorSpace}}\left({\textrm {Irrep}}\left(A_{1}\right)(\{1\})\right){\textrm {BRSplitTrace}}(1,\{\})\left(A_{1},{\textrm {Irrep}}\left(A_{1}\right)(\{1\}),{\textrm {FundamentalBasis}},1\right)+{\textrm {BRSplitTrace}}(1,\{\})\left(A_{1},{\textrm {Irrep}}\left(A_{1}\right)(\{1\}),{\textrm {FundamentalBasis}},2\right){\textrm {Irrep}}\left(A_{1}\right)(\{1\})}