I need your expertise in understanding the following:
Let , for every and let
What can be said about the following in term of convexity (let be any arbitrary integer such that
I am asking this since, it's easy to see that both the denominator and nominator are convex (it resembles the objective function of SVM), however is this fraction convex, or quasi-convex, concave, etc... ?
Please advise and thanks in advance.
P.s. A more advanced question would be, what can be said on the fraction of two convex function in general?