Inverse of the Vandermonde and Vandermonde confluent matrices [PDF]
Héctor Moya-Cessa, Francisco Soto-EguibarThe inverse of the Vandermonde and confluent Vandermonde matrices are presented. In the case of the Vandermonde matrix, we present a decomposition in three factors, one of them a diagonal matrix. The evaluation of such inverse matrices is a key point to ?nd functions of a matrix, namely exponential functions (evolution operators)and logarithmic functions (entropies) in quantum mechanical topics.View original: http://arxiv.org/abs/1211.1566
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