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documentation:guide:list_of_transformations [2015/11/21 10:57] poslavskysv [DiracTrace] |
documentation:guide:list_of_transformations [2015/11/21 11:03] poslavskysv |
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- | ====== List of transformations ====== | + | ====== List of common transformations ====== |
<html> | <html> | ||
<div class="text-right" style="font-size: 15px; "> | <div class="text-right" style="font-size: 15px; "> | ||
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<html><hr style="border:dashed #555555; border-width:1px 0 0; height:0;"></html> | <html><hr style="border:dashed #555555; border-width:1px 0 0; height:0;"></html> | ||
+ | ====SpinorsSimplify==== | ||
+ | simplifies Dirac spinors: | ||
+ | <sxh groovy; gutter: false> | ||
+ | defineMatrices 'G_a', 'G5', Matrix1.matrix, 'cu', Matrix1.covector | ||
+ | def sSimplify = SpinorsSimplify[[uBar: 'cu', Momentum: 'p_a', Mass: 'm']] | ||
+ | println sSimplify >> 'cu*G^a*p_a'.t | ||
+ | </sxh> | ||
+ | <sxh plain; gutter: false> | ||
+ | > -m*cu*G_{b}+2*cu*p_{b} | ||
+ | </sxh> | ||
+ | See [[documentation:ref:SpinorsSimplify]]. | ||
+ | |||
+ | <html><hr style="border:dashed #555555; border-width:1px 0 0; height:0;"></html> | ||
+ | |||
====Symmetrize==== | ====Symmetrize==== | ||
gives a symmetrization of tensor with respect to specified indices under the specified symmetries: | gives a symmetrization of tensor with respect to specified indices under the specified symmetries: |