Theorem of the Day

Related Places

The links below will bring you (in a new window) a superb collections of sites, blogs, online magazines etc, covering large parts of mathematics. Some subject-specific links are here.

This site draws inspiration from:

Mathematicians of the Day

Astronomy Picture of the Day

Statistical Design of the Month

Theorem of the Week

the MAA's Number a Day

Les Conjectures du Trimestre

Theorem Lists

Wikipedia's List of Theorems has over 500 theorems. In addition there are long lists of Lemmas and Inequalities.

Noel Vaillant's Probability Tutorials can be indexed by the 140 theorems contained therein.

Nathan W. Kahl has posted a list Top 100 Theorems, attributed to Paul and Jack Abad but enhanced with many well-chosen links. The site appears now to exist only as an archive but the idea has been given new life by Freek Wiedijk whose list of formalised theorems I believe to be an important and forward-looking resource.

Theorem of the Day by David Simmons-Duffin and Matt Gline offers infinitely many theorems and is the perfect satirical antidote to this site...

...while Ari Nieh's Sarong Theorem Archive (now hosted at Calgary by David Roe) is the perfect sartorial complement!

Another site offering infinitely many theorems ... named after you!

A list of cameo appearances by theorems in the arts (thanks to Anthony Knapp for prompting this).

Mathematics Compendia & Encyclopediae

Cut-the-knot: Alexander Bogomolny's cornucopia of maths applets and animations.

Library of Math by David Andrew Smith

The MacTutor History of Mathematics by John J. O'Connor and Edmund F. Robertson

Mathematical Atlas by Dave Rusin

Mathpages by the admirable but elusive Kevin Brown

Mathworld by Eric Weisstein

Numericana is an Aladdin's cave of answers to mathematical questions, basic and advanced, maintained by Gérard P. Michon. The Numericana Hall of Fame links to some of the best web resources in mathematics (I wrote that before Dr Michon was kind enough to include theoremoftheday.org in it!).

PlanetMath maintained by Nathan Egge and Aaron Krowne

Springer Encyclopedia of Mathematics

Online Magazines

Eureka, the famous magazine of Cambridge's Archimedeans. The aim is gradually to make back issues available online; there isn't much there yet but it is worth checking from time to time.

The Feature Column of the AMS, currently edited by David Austin, Bill Casselman, Joe Malkevitch and Tony Phillips, has an brilliant archive going back ten years, with well over 100 authoritative articles.

Images de Mathématiques, a French-language, magazine-style website by Institut Henri Poincaré.

Kömal Hungarian language magazine.

MATEMATICALIA Spanish language magazine.

The Mathematics Association of America's range of wonderful magazines are not online but over a hundred award-winning articles are.

Mathematics Magazine Canadian magazine for high school students.

Math Forum Internet News weekly newsletter from The Math Forum @ Drexel.

Nieuw Archief voor Wiskunde Dutch language magazine.

Plus, part of the Millenium Mathematics Project, authoritative and beautifully presented.

Pythagoras, Dutch language magazine.

Resonance, general science magazine but with many interesting articles on mathematics.

Solmu, Finnish language magazine.

Blogs

John Baez's Stuff – blogs, diaries, news; one of the greats!

Pat Ballew's blog – a fine assortment from the author of an even more famous one.

Cameron Counts – a top professional gives an unusually wide-ranging view of the profession.

Carnival of Mathematics – an ingenious idea to showcase mathematics blogs.

Combinatorics and More – a beautiful blog by Gil Kalai.

CSE Blog – fun place for puzzles, tricks, tips on quantitative methods by Pratik Poddar.

Fermat's Last Theorem – the lemmas, the theorems, the conjectures, the people – FLT as a great tapestry. By Larry Freeman whose site offers several other blogs.

Richard Lipton's Gödel’s Lost Letter and P=NP – insights on everything concerning the theory of computation.

Tanya Khovanova's blog –"mathematics, applications of mathematics to life in general, and my life as a mathematician". Fun and sometimes funny and sometimes weird.

learninginmathland – a blog for teachers (and their students and anyone else who appreciates seeing the basics lovingly and expertly presented).

Mathblogging: latest posts from hundreds of maths blogs.

Math Teachers at Play – a sister carnival to Carnival of Mathematics.

Edmund Harriss' blog Maxwell's Demon revolves around mathematics communication and mathematics art. A tremendous blend of images and imagination.

Terence Tao's research blog – the one I hear PhD students talking about all the time...

Top-50 Computer Science Blogs – from Comtechtor; you can lose yourself for hours via this route!

XOR's Hammer – a wonderful blog by Michael O'Connor, primarily about mathematical logic, but with lots and lots of other nice things

Other Resources

alwaysmath.com/ pre-kindergarten to college level math: a kind of online home tutor; lots of multiple-choice tests etc.

For Dutch speakers, Curiosa Mathematica, by Jens Bossaert, is a wonderful source of mathematical gems (currently 11.5MB).

The European Mathematical Society Information. Service

Gallery of public domain mathematical drawings by David Eppstein.

Guidetoonlineschools has a very nice teaching guide to connections between mathematics and art (thanks to Lauren Jackson for this link).

images.math.cnrs.fr, great blog-style collection of images and words (in French) — à ne pas manquer!

Just The Maths, a superb teaching pack for 'mathematical methods' by A.J. Hobson. The distillation of a lifetime's thinking about how it should be done.

The M500 Society, one of the UK's great unsung mathematical resources, going from stength to strength after 35 years and the source of the beguiling M500 Magazine.

mangahigh.com, a commercial-quality computer games site for school-level maths. Very impressive!

Math DL: the MAA's digital library. Their writing award winners, in particular, provide a wonderful collection of highlights from the different MAA publications.

Math Forum, an excellent resource for schools and colleges.

Math Insight, a tremendous collection of notes on mainly analysis-related topics.

MathPath: principally a summer camp for highly gifted middle school students but their math resources offer a wealth of high-quality material which will appeal to any mathematician.

Mudd Math Fun Facts by Francis Edward Su (does what it says – it's fun!)

NRICH brings mathematics alive for school students like nowhere else.

Onlinemathdegrees.org a valueable (currently USA-oriented) listing of undergraduate opportunities in mathematics.

Outrageous Number Crunchers: a fun collection of links from creditreport.org for calculating everything from guitar chords to carbon footprints.

The Peoples Archive has film+transcript interviews with a galaxy of intellectual and artistic giants, including Miachael Atiyah, Freeman Dyson, Don Knuth, Benoit Mandelbrot.

Pulse Project Maths Podcast by Peter Rowlett and Samuel Hansen, conversations about whatever is current in the mathematical world.

Travels in a Mathematical World: podcast site, a great source of live interviews, bits of mathematical history etc. Peter Rowlett has moved on (see above) but the site will remain, and remains a valuable visit.

Virtual Maths Museum: a fine collection of images of curves, surfaces etc.