Geodesic
Characteristic polynomials of multi-index transportation problems
Diskretnaya Matematika, Tome 15 (2003) no. 2, pp. 83-88

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For the matrix $A^TA$, where $A$ is the matrix of restrictions of a multi-index transportation problem, we give the characteristic polynomial and the base of eigenvectors. We discuss eventual applications of the results obtained. 
@article{DM_2003_15_2_a5,
     author = {V. N. Shevchenko},
     title = {Characteristic polynomials of multi-index transportation problems},
     journal = {Diskretnaya Matematika},
     pages = {83--88},
     publisher = {mathdoc},
     volume = {15},
     number = {2},
     year = {2003},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DM_2003_15_2_a5/}
}
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V. N. Shevchenko. Characteristic polynomials of multi-index transportation problems. Diskretnaya Matematika, Tome 15 (2003) no. 2, pp. 83-88. http://geodesic.mathdoc.fr/item/DM_2003_15_2_a5/