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Question: Substituting indexes by an operator

Question:Substituting indexes by an operator

Kmohseni 5 Maple 2022
multiplication tensor
February 10 2023
1

Dear Maple community,

I am trying to define an operator in Maple that multiplies to an expression and substitutes the indices.

The issue is that I don't want to add the expression as input of the operator/function, sth like:

p := proc(i, j, z) option operator; subs({i = j, j = i}, z); end proc

I want it to act on expression, like:

P(i,j)*X(i,j,k)=X(j,i,k)

and X can be any tensor or matrix.

Thanks in advance.
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