Moody T. Chu Robert Funderlic The Centroid Decomposition: Relationships between Discrete Variational Decompositions and SVDs. 1025-1044 2002 23 SIAM J. Matrix Anal. Appl. 4 https://doi.org/10.1137/S0895479800382555 db/journals/siammax/siammax23.html#ChuF02