Package cc.redberry.core.transformations

Examples of cc.redberry.core.transformations.Transformation$Util

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        //simplifications with SU(N) combinations
        ArrayList<Transformation> unitarySimplifications = new ArrayList<>();

        if (dimension instanceof Complex) {
            Transformation nSub = parseExpression("N = " + dimension);
            for (ParseToken substitution : unitarySimplificationsTokens)
                unitarySimplifications.add((Transformation) nSub.transform(tokenTransformer.transform(substitution).toTensor()));
        } else
            for (ParseToken substitution : unitarySimplificationsTokens)
                unitarySimplifications.add((Transformation) tokenTransformer.transform(substitution).toTensor());

        //all simplifications
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                                  ChangeIndicesTypesAndTensorNames tokenTransformer) {
        //simplifications with SU(N) combinations
        ArrayList<Transformation> unitarySimplifications = new ArrayList<>();

        if (dimension instanceof Complex) {
            Transformation nSub = parseExpression("N = " + dimension);
            for (ParseToken substitution : unitarySimplificationsTokens)
                unitarySimplifications.add((Transformation) nSub.transform(tokenTransformer.transform(substitution).toTensor()));
        } else
            for (ParseToken substitution : unitarySimplificationsTokens)
                unitarySimplifications.add((Transformation) tokenTransformer.transform(substitution).toTensor());

        //all simplifications
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                indicator);

        StringBuilder sb;
        Tensor temp;
        String covariantIndicesString;
        Transformation n2 = new SqrSubs(Tensors.parseSimple("n_l")), n2Transformer = new Transformer(TraverseState.Leaving, new Transformation[]{n2});
        Transformation[] transformations = ArraysUtils.addAll(new Transformation[]{EliminateMetricsTransformation.ELIMINATE_METRICS, n2Transformer}, riemannBackground);
        for (i = 0; i < actualHatQuantities; ++i) {
            hatQuantities[i] = new Expression[operatorOrder + 1 - i];
            covariantIndicesString = IndicesUtils.toString(Arrays.copyOfRange(covariantIndices, 0, covariantIndices.length - i), OutputFormat.Redberry);
            for (j = 0; j < operatorOrder + 1 - i; ++j) {
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                Tensors.parseExpression("R_{l}^{l}= R")
        };


        Expression kronecker = (Expression) Tensors.parse("d_{l}^{l}=4");
        Transformation n2 = new SqrSubs(Tensors.parseSimple("n_l")), n2Transformer = new Transformer(TraverseState.Leaving, new Transformation[]{n2});
        Transformation[] common = new Transformation[]{EliminateMetricsTransformation.ELIMINATE_METRICS, n2Transformer, kronecker};
        Transformation[] all = ArraysUtils.addAll(common, riemansSubstitutions);
        Tensor temp;

        //Calculating Delta- tensors
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            Tensors.parseExpression("R_{\\mu}^{\\mu}= R"),
            Tensors.parseExpression("P_{\\mu}^{\\mu}= P")};


        Expression kronecker = (Expression) Tensors.parse("d_{\\mu}^{\\mu}=4");
        Transformation n2 = new SqrSubs(Tensors.parseSimple("n_\\mu")), n2Transformer = new Transformer(TraverseState.Leaving, new Transformation[]{n2});
        Transformation[] common = new Transformation[]{ContractIndices.CONTRACT_INDICES, n2Transformer, kronecker};
        Transformation[] all = ArraysUtils.addAll(common, riemansSubstitutions);


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                return t;

            return t instanceof Sum ? new Sum(newData, t.getIndices()) : new Expression(t.getIndices(), newData[0], newData[1]);
        }

        return __unsafe_mapping_apply__(t, new Transformation() {
            @Override
            public Tensor transform(Tensor t) {
                return optimizeDummies(t);
            }
        });
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        }

        // all types except sums and products are already processed at this point

        if (contractIndices) {
            return Transformation.Util.applyToEachChild(tensor, new Transformation() {
                @Override
                public Tensor transform(Tensor tt) {
                    return applyIndexMapping(tt, indexMapper);
                }
            });
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        //simplifications with SU(N) combinations
        ArrayList<Transformation> unitarySimplifications = new ArrayList<>();

        if (dimension instanceof Complex) {
            Transformation nSub = parseExpression("N = " + dimension);
            for (ParseToken substitution : unitarySimplificationsTokens)
                unitarySimplifications.add((Transformation) nSub.transform(tokenTransformer.transform(substitution).toTensor()));
        } else
            for (ParseToken substitution : unitarySimplificationsTokens)
                unitarySimplifications.add((Transformation) tokenTransformer.transform(substitution).toTensor());

        //all simplifications
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                                  ChangeIndicesTypesAndTensorNames tokenTransformer) {
        //simplifications with SU(N) combinations
        ArrayList<Transformation> unitarySimplifications = new ArrayList<>();

        if (dimension instanceof Complex) {
            Transformation nSub = parseExpression("N = " + dimension);
            for (ParseToken substitution : unitarySimplificationsTokens)
                unitarySimplifications.add((Transformation) nSub.transform(tokenTransformer.transform(substitution).toTensor()));
        } else
            for (ParseToken substitution : unitarySimplificationsTokens)
                unitarySimplifications.add((Transformation) tokenTransformer.transform(substitution).toTensor());

        //all simplifications
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                indicator);

        StringBuilder sb;
        Tensor temp;
        String covariantIndicesString;
        Transformation n2 = new SqrSubs(Tensors.parseSimple("n_\\mu")), n2Transformer = new Transformer(TraverseState.Leaving, new Transformation[]{n2});
        Transformation[] transformations = ArraysUtils.addAll(new Transformation[]{EliminateMetricsTransformation.ELIMINATE_METRICS, n2Transformer}, riemannBackground);
        for (i = 0; i < actualHatQuantities; ++i) {
            hatQuantities[i] = new Expression[operatorOrder + 1 - i];
            covariantIndicesString = IndicesUtils.toString(Arrays.copyOfRange(covariantIndices, 0, covariantIndices.length - i), OutputFormat.Redberry);
            for (j = 0; j < operatorOrder + 1 - i; ++j) {
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Related Classes of cc.redberry.core.transformations.Transformation$Util

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  • cc.redberry.core.tensor.ApplyIndexMapping
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  • cc.redberry.core.tensor.TensorBuilder
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  • cc.redberry.physics.oneloopdiv.OneLoopCounterterms
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