Spectral projectors exhibit some powerful properties. For example, the trace of a spectral projector can be used to determine the number of eigenvalues enclosed by a curve. Here some other nice features of spectral projectors are investigated.
Spectral projectors exhibit some powerful properties. For example, the trace of a spectral projector can be used to determine the number of eigenvalues enclosed by a curve. Here some other nice features of spectral projectors are investigated.
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