An improved characterisation of the interior of the completely positive cone
An improved characterisation of the interior of the completely positive cone
A symmetric matrix is deļ¬ned to be completely positive if it allows a factorisation BBT , where B is an entrywise nonnegative matrix. This set is useful in certain optimisation problems. The interior of the completely positive cone has previously been characterised by DuĀØr and Still [M. DuĀØr and G. ā¦