Timeline for closed form solution of the following iterative equation?

7 events

when toggle format	what		by	license	comment
Dec 19, 2015 at 20:30	history	edited	Dr. Wolfgang Hintze	CC BY-SA 3.0	added 31 characters in body
Dec 19, 2015 at 13:12	comment	added	Dr. Wolfgang Hintze		Thank you. Yes, I was aware of it, but considered the contrary case to be trivial. I have now included it in my answer.
Dec 19, 2015 at 13:09	history	edited	Dr. Wolfgang Hintze	CC BY-SA 3.0	Case a (not all $P_j$ are positive)
Dec 19, 2015 at 2:33	comment	added	dxiv		Your premise $P_j > 0$ is stronger than the stated $P_i \ge 0$.
Dec 18, 2015 at 11:28	history	edited	Dr. Wolfgang Hintze	CC BY-SA 3.0	added 24 characters in body
Dec 18, 2015 at 11:21	history	edited	Dr. Wolfgang Hintze	CC BY-SA 3.0	added 47 characters in body
Dec 18, 2015 at 11:16	history	answered	Dr. Wolfgang Hintze	CC BY-SA 3.0