This is part of the Aperiodical Advent Calendar. We’ll be posting a new surprise for you each morning until Christmas!
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The Aperiodvent Calendar, 2015
Everyone enjoys counting down to Christmas so much, that it seems to happen earlier and earlier each year. Well, sticking to the standard format of counting from 1st December down to 25th using a specially prepared calendar, we present the Aperiodical’s 2015 Advent Calendar, featuring behind each door not a small disappointing piece of chocolate, but a randomly chosen nugget of mathematical goodness for your enjoyment.
From YouTube videos to websites cataloguing number sequences, we’ve got a nice surprise for you each day. We’ll be adding each door as a post on the site, plus you can find them all collected together below, along with interesting number facts. Enjoy!
Carnival of Mathematics 128
The next issue of the Carnival of Mathematics, rounding up blog posts from the month of October, and compiled by Mike, is now online at Walking Randomly.
The Carnival rounds up maths blog posts from all over the internet, including some from our own Aperiodical. See our Carnival of Mathematics page for more information.
Puzzlebomb – November 2015
Puzzlebomb is a monthly puzzle compendium. Issue 47 of Puzzlebomb, for November 2015, can be found here:
Puzzlebomb – Issue 47 – November 2015
The solutions to Issue 47 can be found here:
Puzzlebomb – Issue 47 – November 2015 – Solutions
Previous issues of Puzzlebomb, and their solutions, can be found at Puzzlebomb.co.uk.
AMS online opportunities
The American Mathematical Society have created a system of online listings for people offering awards, fellowships, professional opportunities and other maths-related callouts. There’s a website at ams.org/
The system is aimed at mathematics faculty/scientists, institutions, programs, postdocs/early-career mathematicians, postgrads, undergrads, high school students and teachers (so, pretty much anyone involved in maths), and we’ve cheekily used it to post a call for submissions of articles for our Irregulars column, where we feature guest posts from other authors.
More information
Awards, Fellowships and other opportunities, at the AMS website.
Riemann Hypothesis not proved

Here’s a tweet from Alex Bellos this morning:
BBC claims Nigerian solves Riemann Hypothesis, most famous problem in maths. Surely a hoax! https://t.co/Wkltfkh2P3 https://t.co/UHGy9W8shC
— Alex Bellos (@alexbellos) November 17, 2015
He’s right to be surprised – as reported in Vanguard, a Nigerian newspaper:
The 156-year old Riemann Hypothesis, one of the most important problems in Mathematics, has been successfully resolved by Nigeria Scholar, Dr. Opeyemi Enoch.
Suspicion levels are raised, as the paper also reports:
Three of the [Clay Millenium Prize] problems had been solved and the prizes given to the winners. This makes it the fourth to be solved of all the seven problems.
Unless we missed something, that’s not massively true – the only Millennium Prize problem solved so far is the Poincaré conjecture.
Carnival of Mathematics 127
The next issue of the Carnival of Mathematics, rounding up blog posts from the month of September, and compiled by Tom, is now online at Mathematics and Coding.
The Carnival rounds up maths blog posts from all over the internet, including some from our own Aperiodical. See our Carnival of Mathematics page for more information.
