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math.ST2019
Singular matrix variate Birnbaum-Saunders distribution under elliptical models
José A. Díaz-García, Francisco J. Caro-Lopera
This work sets the matrix variate Birnbaum-Saunders theory in the context of singular distributions and elliptical models. The so termed singular matrix variate generalised Birnbau…
math.ST2019
Some comments about measures, Jacobians and Moore-Penrose inverse
José A. Díaz-García, Francisco J. Caro-Lopera
Some general problems of Jacobian computations in non-full rank matrices are discussed in this work. In particular, the Jacobian of the Moore-Penrose inverse derived via matrix dif…