Browsing by Author "3670a0b7-53ad-4454-8174-744e872b6da7"

Now showing items 1-3 of 3

    • Additive representation of symmetric inverse M-matrices and potentials 
      Dellacherie, Claude; Martínez Aguilera, Servet; San Martín Aristegui, Jaime (Academic Press-Elsevier, 2016)
      In this article we characterize the closed cones respectively generated by the symmetric inverse M-matrices and by the inverses of symmetric row diagonally dominant M-matrices. We show the latter has a finite number of ...
    • Inverse M-matrix, a new characterization 
      Dellacherie, Claude; Martínez Aguilera, Servet; San Martín Aristegui, Jaime (Elsevier, 2020)
      In this article we present a new characterization of inverse M-matrices, inverse row diagonally dominant M-matrices and inverse row and column diagonally dominant M-matrices, based on the positivity of certain inner products.
    • Potentials of random walks on trees 
      Dellacherie, Claude; Martínez Aguilera, Servet; San Martín Aristegui, Jaime (Elsevier, 2016)
      In this article we characterize inverse M-matrices and potentials whose inverses are supported on trees. In the symmetric case we show they are a Hadamard product of tree ultrametric matrices, generalizing a result by ...