Posted on August 11, 2017 by Marshall JiangLarson 1.11.5 Here’s a cute little problem: let Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website Δ This site uses Akismet to reduce spam. Learn how your comment data is processed. Post navigation Previous PostPrevious 1962 PutnamNext PostNext A Matrix Inequality