Extremal Eigenvalue Problems in Optics, Geometry, and Data Analysis ... Since Lord Rayleigh conjectured that the disk should minimize the first eigenvalue of the Laplace-Dirichlet operator among all ...

UCINET IV does calculate unbalanced Correspondence Analysis, but it does not report the signs of the eigenvalues. Positive eigenvalues are associated with clustering of interconnected nodes and ...

Transmission eigenvalue analysis, a closely related area, investigates the spectral properties that arise when waves propagate through heterogeneous media. Together, ...