sorry I don't know how to post Latex here I have to implement in Matlab the following formula and I'd like to know if the expression given here really corresponds to the minimum indicated, and why:
I found several formula errors in the previous equation of the same publication, but here I'm unable to see if this is correct. So, is this correct, and how does one prove it? thanks
PS: the non-bold letters are matrices, I being the identity and the bold letters being column vectors, lambda is a scalar value