cc.redberry.core.transformations.symmetrization

Class SymmetrizeTransformation

java.lang.Object

cc.redberry.core.transformations.symmetrization.SymmetrizeTransformation

All Implemented Interfaces:

Transformation

public final class SymmetrizeTransformation
extends java.lang.Object
implements Transformation

Gives a symmetrization of tensor with respect to specified indices under the specified symmetries.

Since:

1.1.6

Nested Class Summary

Nested classes/interfaces inherited from interface cc.redberry.core.transformations.Transformation

Transformation.Util

Field Summary

Fields inherited from interface cc.redberry.core.transformations.Transformation

INDENTITY

Constructor Summary

Constructors

Constructor and Description
SymmetrizeTransformation(SimpleIndices indices, boolean multiplyBySymmetryFactor) Creates transformation that makes tensors symmetric in specified indices, symmetry group of the result will be guaranteed a super group of permutation group of specified indices.

Method Summary

Modifier and Type	Method and Description
Tensor	transform(Tensor t) Transforms specified tensor and returns the result.

Methods inherited from class java.lang.Object

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

Constructor Detail

SymmetrizeTransformation

public SymmetrizeTransformation(SimpleIndices indices,
                                boolean multiplyBySymmetryFactor)

Creates transformation that makes tensors symmetric in specified indices, symmetry group of the result will be guaranteed a super group of permutation group of specified indices.

Parameters:

indices - simple indices with symmetries

multiplyBySymmetryFactor - if specified, then resulting sum will be divided by its size

Method Detail

transform

public Tensor transform(Tensor t)

Description copied from interface: Transformation

Transforms specified tensor and returns the result.

Specified by:

transform in interface Transformation

Parameters:

t - tensor

Returns:

transformed tensor