My paper “Perov’s Contraction Principle and Dynamic Programming with Stochastic Discounting” got accepted at Operations Research Letters. I found a generalization of Banach’s contraction mapping theorem when I was studying a certain dynamic programming problem with stochstic discounting. It turned out that the fixed point theorem was due to Perov (1964) but I thought the application was interesting, so I wrote a short paper.
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This post is completely boring for outsiders. I am just writing this down so that I do not forget.
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My university uses Canvas for instructional purposes. Canvas has a functionality called “Inbox”, which allows you to send messages. I have long thought this functionality not only useless but even harmful. This is because I ignore everything sent to Canvas Inbox, but students who are not aware that I do not use Canvas Inbox may send me messages that gets ignored and may complain. Since I was not able to find information on how to disable Inbox, I contacted the university technical support.