Next: Storage and Work.
We give three typical cases:
- stands for one or a few isolated eigenvalues at the end of
- stands for one or several eigenvalues at the end of the
spectrum, possibly clustered, a typical example being computing
the lowest eigenmodes of a vibrating mechanical system,
modeled by finite element methods.
- means some eigenvalues in the middle of the spectrum,
most often in a specified interval, such as seeking all eigenmodes of a
mechanical or electrical system excited by an external load of a