cc.redberry.core.tensorgenerator

Class TensorGenerator

java.lang.Object

cc.redberry.core.tensorgenerator.TensorGenerator

public class TensorGenerator
extends java.lang.Object

Generates tensor of the most general form with specified free indices from specified tensors.

Since:

1.0

Method Summary

Modifier and Type	Method and Description
static Tensor	generate(SimpleIndices indices, Tensor[] samples, boolean symmetricForm, boolean withCoefficients, boolean raiseLower) Generates tensor of the most general form with specified free indices from specified tensors.
static GeneratedTensor	generateStructure(SimpleIndices indices, Tensor[] samples, boolean symmetricForm, boolean withCoefficients, boolean raiseLower) Generates tensor of the most general form with specified free indices from specified tensors.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

generate

public static Tensor generate(SimpleIndices indices,
                              Tensor[] samples,
                              boolean symmetricForm,
                              boolean withCoefficients,
                              boolean raiseLower)

Generates tensor of the most general form with specified free indices from specified tensors.

Parameters:

indices - free indices of the resulting tensor

samples - samples which used to generate tensor of the general form

symmetricForm - specifies whether the resulting tensor should be symmetric

withCoefficients - specifies whether each term in the result should be multiplied on arbitrary coefficient

raiseLower - specifies whether indices of samples should be raised and lowered in the most general form

Returns:

tensor of the most general form with specified free indices from specified tensors

generateStructure

public static GeneratedTensor generateStructure(SimpleIndices indices,
                                                Tensor[] samples,
                                                boolean symmetricForm,
                                                boolean withCoefficients,
                                                boolean raiseLower)

Generates tensor of the most general form with specified free indices from specified tensors.

Parameters:

indices - free indices of the resulting tensor

samples - samples which used to generate tensor of the general form

symmetricForm - specifies whether the resulting tensor should be symmetric

withCoefficients - specifies whether each term in the result should be multiplied on arbitrary coefficient

raiseLower - specifies whether indices of samples should be raised and lowered in the most general form

Returns:

tensor of the most general form with specified free indices from specified tensors and array of generated coefficients