
\subsection{\bf General Properties of Eigenvalues}

\begin{slide}

\begin{itemize}
\item The solutions are usually COMPLEX and in special cases
degenerate

$\bullet$ e.g., matrix $A=I$, the unit matrix has $n$ degenerate
eigenvalues $\lambda_k = 1$.

\item Now consider special case when $A$ is real and symmetric, or
more generally, complex but hermitean when we will find eigenvalues
are real.
\end{itemize}

\end{slide}

