ISI 2008 ME1 doubt

Posted by varnika1880 on Apr 17, 2016; 7:20am
URL: http://discussion-forum.276.s1.nabble.com/ISI-2008-ME1-doubt-tp7599901.html

A square matrix of order n is said to be a bistochastic matrix if all of its entries are
non-negative and each of its rows and columns sum to 1. Let 1
1 . ×
× = n
n×n
P
y where
elements of y are some rearrangements of the elements of x. Then n x
(a) P is bistochastic with diagonal elements 1,
(b) P cannot be bistochastic,
(c) P is bistochastic with elements 0 and 1,
(d) P is a unit matrix.