Tensors.addSymmetry("R_lm", IndexType.LatinLower, false, new int[]{1, 0});
Tensors.addSymmetry("R_lmab", IndexType.LatinLower, true, new int[]{0, 1, 3, 2});
Tensors.addSymmetry("R_lmab", IndexType.LatinLower, false, new int[]{2, 3, 0, 1});
this.L = Tensors.expression(Tensors.parse("L"), new Complex(operatorOrder));
this.hatQuantities = new Expression[HAT_QUANTITIES_GENERAL_COUNT][];
this.matrixIndicesCount = inputValues[1].get(0).getIndices().size() - operatorOrder;
//all are upper
int[] covariantIndices = new int[operatorOrder];