Difference between revisions of "Remncomm.m"
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C=remncomm(A,EvB) | C=remncomm(A,EvB) | ||
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A - a square matrix | A - a square matrix | ||
Revision as of 18:51, 5 June 2026
Removes from the Hermitian operator A the part that does not commute with the Hermitian operator B.
Syntax
C=remncomm(A,EvB)
Parameters
A - a square matrix
EvB - a square matrix containing eigenvectors
of B in columns
Outputs
C - a square matrix
Notes
When the matrix B is diagonal, the part of A that commutes with it is the diagonal part, so just use diag(diag(A)).
See also
Version 2.5, authors: Ilya Kuprov
