Anselmo Ramalho Pitombeira-Neto

2 Questions 15 Answers 0 Followers

Questions related from Anselmo Ramalho Pitombeira-Neto

Are 0-1 square matrices with unique columns unimodular?

I am studying a problem in which I have to solve a linear system Ax = b for which A is a 0-1 non-singular square matrix with unique columns. How can I know if A is unimodular, i.e., invertible...

21 September 2014 8,754 7 View

Is there any good approximation to the joint distribution of Poisson marginally distributed random variables?

Suppose I have a random vector X = (X_1, X_2, ..., X_n) for which X_i ~ Po(\lambda_i), but the components are not independent, so that the joint distribution is not the product of the marginal...

02 April 2014 9,097 1 View