ThmDex – An index of mathematical definitions, results, and conjectures.
F12068
Formulation 1
Let $A \in \mathbb{C}^{N \times N}$ be a D6159: Complex square matrix such that
(i) $\lambda \in \mathbb{C}$ is a D1207: Complex number
(ii) $I_N \in \mathbb{C}^{N \times N}$ is a D5699: Complex identity matrix
(iii) \begin{equation} A = \lambda I_N \end{equation}
Then \begin{equation} \text{Det} A = \lambda^N \end{equation}