Carnival of Math: October 2023
Welcome to Episode 220 of the Carnival of Math!
I'm Nathalie, the host of Infinitely Irrational and this month, I'm hosting the Carnival, a monthly blogging round-up. The Carnival of Mathematics accepts any mathematics-related blog posts, YouTube videos or other online content posted during the month: explanations of serious mathematics, puzzles, writing about mathematics education, mathematical anecdotes, refutations of bad mathematics, applications, reviews, etc. Visit the Aperiodical for more information.
Before you go - check out our latest podcast episode on Charles Dodgson (also known as Lewis Carroll - author of Alice in Wonderland!) on the left.
Kurilenko has potentially discovered a string in Post's Tag Problem that grows without bound. Such a string has been unknown for 100 years!
New song parody lyrics for function transformation abcdefx, based on Gayle's 2021 pop hit abcdefu.
A new formula, developed by a submitter's daughter from India in class 10.
Enter your Einstein Hat-themed project for a chance to win $10,000 from the Museum of Mathematics!
Official contest link
Enter your Einstein Hat-themed project for a chance to win $10,000 from the Museum of Mathematics!
An Egyptian Pi insight; this submission is about volume, 10ish, and tending toward eleven.
An addendum to the previous post, an additional insight provies information on halving the ratio and approximating the volume of a cone using diameter and height.
This "Spotlight on topology and algebraic geometry" article details the recent work by algebraist Iva Halacheva, algebraic topologist Marcy Robertson and low-dimensional topologist Zsuzsanna Dancso, who collaborated through the Sydney Mathematical Research Institute. The paper, published in Transactions of the American Mathematical Society, sets out a topological characterisation of the Kashiwara–Vergne groups.