The kernel of a linear transformation between vector spaces is its null space.
Linear Transformation Kernel
See also
Linear Transformation, Null SpaceThis entry contributed by Margherita Barile
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Cite this as:
Barile, Margherita. "Linear Transformation Kernel." From MathWorld--A Wolfram Web Resource, created by Eric W. Weisstein. https://mathworld.wolfram.com/LinearTransformationKernel.html