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Special Matrix


An integer matrix whose entries satisfy

 a_(ij)={0   if j>i+1; -1   if j=i+1; 0 or 1   if j<=i.
(1)

There are 2^(n-1) special minimal matrices of size n×n.


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References

Knuth, D. E. "Problem 10470." Amer. Math. Monthly 102, 655, 1995.

Referenced on Wolfram|Alpha

Special Matrix

Cite this as:

Weisstein, Eric W. "Special Matrix." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/SpecialMatrix.html

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