tripledelta.tensor | R Documentation |
The tensor mapping a tensor of dimension d to its corresponding diagonal tensor of dimension c(d',d*)
tripledelta.tensor(d,mark1="'",mark2="*",dn=NULL)
d |
the first of three dimension vectors |
mark1 |
the mark for the second dimension vectors |
mark2 |
the mark for the third dimension vectors |
dn |
list of character vectors, optional dimnames |
The tripledelta is the tensor mapping a tensor to a corresponding diagonal tensor.
The tensor given by:
E_{i_1\ldots i_n j_1\ldots
j_n k_1\ldots k_n}=\delta_{i_1j_1}\delta_{i_1k_1}
\ldots \delta_{i_nj_n}\delta_{i_nk_1}
K. Gerald van den Boogaart
delta.tensor
, diag.tensor
tripledelta.tensor(3)
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