The Eigenvalues of the Null Matrix are Only Zero
Theorem1
English Translation:
Let’s consider as a finite-dimensional vector space, and as a nilpotent linear transformation. Then, the eigenvalues of are exclusively .
Japanese Translation:
を有限次元のベクトル空間、を冪零の線形変換としよう。すると、の固有値はだけだ。
Stephen H. Friedberg, Linear Algebra (4th Edition, 2002), p513 ↩︎