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regular representation of permutations implemented

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Jiri Pittner
2024-01-18 23:45:42 +01:00
parent 2cb5258cd0
commit 13c23fb85d
4 changed files with 103 additions and 8 deletions
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mat.h
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@@ -139,7 +139,7 @@ public:
void axpy(const T alpha, const NRPerm<int> &p, const bool direction);
explicit NRMat(const NRPerm<int> &p, const bool direction, const bool parity=false); //permutation matrix
explicit NRMat(const WeightPermutation<int,T> &p, const bool direction);
explicit NRMat(const PermutationAlgebra<int,T> &p, const bool direction, const int nforce=0); //note that one cannot represent e.g. young projectors in this way, since the representation of S(n) by permutation matrices is reducible just to two irreps [n] and [n-1,1]
explicit NRMat(const PermutationAlgebra<int,T> &p, const bool direction, const int nforce=0); //note that one cannot represent e.g. young projectors in this way, since the representation of S(n) by permutation matrices is reducible just to two irreps [n] and [n-1,1] since the charater of that RR = number of cycles of length=1
/***************************************************************************//**