User:Leo1pard/sandbox/Arrowhead-like matrix

Arrowhead-like matrix

In mathematics, an arrowhead-like matrix is a matrix of the form

where X is a diagonal matrix.

Inverses

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When n ≥ k, the arrowhead-like matrix has its inverse matrix

 
 

special cases:

k = 0:

 

k = n:

 

See also

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References

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