Hi all,
I would like to know what is the correct way to pattern match and
substitute expressions in the new tensor canonicalization module.
For instance:
>>> Lorentz = TensorIndexType('Lorentz')
>>> i0,i1 = tensor_indices('i0:1', Lorentz)
>>> A = tensorhead('A', [Lorentz], [[1]])
>>> B = tensorhead('B', [Lorentz], [[1]])
I need something that will match any of these:
A(i0)*B(-i0)
B(-i0)*A(i0)
A(i1)*B(-i1)
Any suggestions?
Thanks
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