Examples of cc.redberry.core.parser.ParseToken

cc.redberry.core.parser.ParseToken
Abstract syntax tree. The implementation is a simple linked tree. @author Dmitry Bolotin @author Stanislav Poslavsky @since 1.0

    private final TIntObjectHashMap<Expression> cachedSubstitutions = new TIntObjectHashMap<>();


    private Tensor traceWithout5(Tensor tensor, int numberOfGammas) {
        Expression substitution = cachedSubstitutions.get(numberOfGammas);
        if (substitution == null) {
            ParseToken rawSubstitution = createRawGammaSubstitution(numberOfGammas);
            substitution = (Expression) tokenTransformer.transform(rawSubstitution).toTensor();
            cachedSubstitutions.put(numberOfGammas, substitution);
        }


        tensor = substitution.transform(tensor);

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        tensor = deltaTrace.transform(tensor);
        return tensor;
    }


    private static ParseToken createRawGammaSubstitution(int numberOfGammas) {
        ParseToken substitution = cachedRawGammaTraces.get(numberOfGammas);
        if (substitution == null) {


            //product of gamma matrices as array
            Tensor[] gammas = new Tensor[numberOfGammas];
            int matrixIndex = setType(IndexType.Matrix1, 0) - 1, metricIndex = -1;

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        return tensor instanceof SimpleTensor && ((SimpleTensor) tensor).getName() == leviCivitaName;
    }




    private Expression getLeviCivitaSelfContraction() {
        ParseToken substitutionToken = cachedLeviCivitaSelfContractions.get(numberOfIndices);
        if (substitutionToken == null) {


            //the l.h.s. of substitution: eps_{abc...}*eps^{pqr...}
            //lower indices of eps ( eps_{...lower...} )
            int[] lower = new int[numberOfIndices];

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    private final TIntObjectHashMap<Expression> cachedSubstitutions = new TIntObjectHashMap<>();


    private Tensor traceWithout5(Tensor tensor, int numberOfGammas) {
        Expression substitution = cachedSubstitutions.get(numberOfGammas);
        if (substitution == null) {
            ParseToken rawSubstitution = createRawGammaSubstitution(numberOfGammas);
            substitution = (Expression) tokenTransformer.transform(rawSubstitution).toTensor();
            cachedSubstitutions.put(numberOfGammas, substitution);
        }


        tensor = substitution.transform(tensor);

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        tensor = deltaTrace.transform(tensor);
        return tensor;
    }


    private static ParseToken createRawGammaSubstitution(int numberOfGammas) {
        ParseToken substitution = cachedRawGammaTraces.get(numberOfGammas);
        if (substitution == null) {


            //product of gamma matrices as array
            Tensor[] gammas = new Tensor[numberOfGammas];
            int matrixIndex = setType(IndexType.Matrix1, 0) - 1, metricIndex = -1;

View Full Code Here

        return tensor instanceof SimpleTensor && ((SimpleTensor) tensor).getName() == leviCivitaName;
    }




    private Expression getLeviCivitaSelfContraction() {
        ParseToken substitutionToken = cachedLeviCivitaSelfContractions.get(numberOfIndices);
        if (substitutionToken == null) {


            //the l.h.s. of substitution: eps_{abc...}*eps^{pqr...}
            //lower indices of eps ( eps_{...lower...} )
            int[] lower = new int[numberOfIndices];

View Full Code Here

    private final TIntObjectHashMap<Expression> cachedSubstitutions = new TIntObjectHashMap<>();


    private Tensor traceWithout5(Tensor tensor, int numberOfGammas) {
        Expression substitution = cachedSubstitutions.get(numberOfGammas);
        if (substitution == null) {
            ParseToken rawSubstitution = createRawGammaSubstitution(numberOfGammas);
            substitution = (Expression) tokenTransformer.transform(rawSubstitution).toTensor();
            cachedSubstitutions.put(numberOfGammas, substitution);
        }


        tensor = substitution.transform(tensor);

View Full Code Here

        tensor = deltaTrace.transform(tensor);
        return tensor;
    }


    private static ParseToken createRawGammaSubstitution(int numberOfGammas) {
        ParseToken substitution = cachedRawGammaTraces.get(numberOfGammas);
        if (substitution == null) {


            //product of gamma matrices as array
            Tensor[] gammas = new Tensor[numberOfGammas];
            int matrixIndex = setType(IndexType.Matrix1, 0) - 1, metricIndex = -1;

View Full Code Here

        return tensor instanceof SimpleTensor && ((SimpleTensor) tensor).getName() == leviCivitaName;
    }




    private Expression getLeviCivitaSelfContraction() {
        ParseToken substitutionToken = cachedLeviCivitaSelfContractions.get(numberOfIndices);
        if (substitutionToken == null) {


            //the l.h.s. of substitution: eps_{abc...}*eps^{pqr...}
            //lower indices of eps ( eps_{...lower...} )
            int[] lower = new int[numberOfIndices];

View Full Code Here

        return tensor instanceof SimpleTensor && ((SimpleTensor) tensor).getName() == leviCivitaName;
    }




    private Expression getLeviCivitaSelfContraction() {
        ParseToken substitutionToken = cachedLeviCivitaSelfContractions.get(numberOfIndices);
        if (substitutionToken == null) {


            //the l.h.s. of substitution: eps_{abc...}*eps^{pqr...}
            //lower indices of eps ( eps_{...lower...} )
            int[] lower = new int[numberOfIndices];

View Full Code Here

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Related Classes of cc.redberry.core.parser.ParseToken

cc.redberry.core.indices.IndicesBuilder

cc.redberry.physics.feyncalc.DiracTraceTransformation

cc.redberry.physics.feyncalc.LeviCivitaSimplifyTransformation

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