The nullity of a linear transformation 
of vector
spaces is the dimension of its null
space. The nullity and the map rank add up to the
dimension of 
, a result sometimes known as the rank-nullity
theorem.
The circuit rank of a graph is sometimes also called
its nullity.
See also
Kernel,
Map Rank,
Null Space,
Rank-Nullity
Theorem
This entry contributed by Margherita
Barile
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Cite this as:
Barile, Margherita. "Nullity." From MathWorld--A Wolfram Web Resource, created by Eric
W. Weisstein. https://mathworld.wolfram.com/Nullity.html
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