(Submitted by heidi )

Geohydrotypography xkcd.com/2803

So far, when it comes to LK-99, everyone is behaving like the cliché: China: a bunch of university labs worked to replicate as fast as possible US: a private company sponsored a replication as a marketing gimmick Russia: cat girl, but whole thing is unclear Europe: on holiday

US states but every state is named like West Virginia

One of my least favourite things to think about is how much value I have contributed to the finance sector after five years of tutoring undergrad maths subjects.

Zihao Liu: On sums of Fourier coefficients of cusp forms twisted with additive characters arxiv.org/abs/2311.00006 arxiv.org/pdf/2311.00006

Simon Coste ꙮ This crucial identity has deep consequences in number theory. In fact, the method of my recent paper on modular forms uses this identity in a very tricky way (see page 3 equation 2.2). arxiv.org/abs/2311.00006

The French mathematician André Weil was imprisoned for failing to report for army duty in 1940. While in jail, he proved the Riemann hypothesis for curves over finite fields. He wrote the following in a letter to his wife:

OK everyone's asking me for my take on the OpenAI stuff, so here it is. I have a strong feeling about what's going on, but no internal info so this is just me talking. The first point to make is that the Dev Day was (IMO) an absolute embarrassment.

Sci Hub is a "pirate" website with 88M research papers freely available. Using it is not advisable. We should all try to make billion-dollar acdemic publishers richer. Here's a thread on integrating Zotero with Sci Hub to get free articles. PLEASE DON'T DO THIS 😉

A Machiavellian Guide to Doing a PhD Rule One: Never Outshine Your Supervisor

Euler-Maclaurin does the job

Kafka only hits home runs

Adegoke, Frontczak: Three combinatorial sums involving central binomial coefficients arxiv.org/abs/2505.09636 Zihao Liu: Explicit quadratic large sieve inequality arxiv.org/abs/2505.09637 en.wikipedia.org/wiki/Mathemati…