From Tim Gowers’ blog comes the announcement that the Tricki – a wiki for various tricks and strategies for proving mathematical results – is now live. (My own articles for the Tricki are also on this blog; also Ben Green has written up an article on using finite fields to prove results about infinite fields which is loosely based on my own post on the topic, which is in turn based on an article of Serre.) It seems to already be growing at a reasonable rate, with many contributors.

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### The Polymath Blog

- Polymath proposal: finding simpler unit distance graphs of chromatic number 5 10 April, 2018
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- Blog theme changed 28 February, 2017
- Rota’s Basis Conjecture: Polymath 12? 23 February, 2017
- MO Polymath question: Summary of Proposals 13 August, 2016

## 13 comments

Comments feed for this article

16 April, 2009 at 11:26 am

anonNice, but I hope there are more algebraic articles to come.

17 April, 2009 at 12:22 am

bengreenI hope there will be more algebraic articles too. In fact part of my thinking in writing a couple of (loosely) algebraic articles was that more expert readers would be so affronted by my ignorance that they could not help but make corrections and supply further discussion. I hope to see that happening!

17 April, 2009 at 2:40 am

gowersI too very much hope that there will be more algebraic articles, and my motivation for writing a couple of articles on group theory was much the same as the motivation that Ben expresses above. I’m glad to see that Henry Wilton has already contributed a group theory article.

17 April, 2009 at 5:41 pm

Terence TaoIn that spirit, I just contributed another group theory article to the Tricki:

http://www.tricki.org/article/First_pretend_that_a_normal_subgroup_is_trivial

19 April, 2009 at 3:03 am

AnonDear Professor Tao,

you (or someone else) could write a short article on “making divergent expressions into precise proofs” explaining what you meant in your blog entry on Tate’s thesis about using distributions.

20 April, 2009 at 2:24 pm

Terence TaoDear Anon,

There is some discussion on this at the tricki article

http://www.tricki.org/article/Create_an_epsilon_of_room

particularly in Example 5. (For the manipulations involving adeles, one would probably want to perform some regularisations based on gaussians; such computations are not yet on that tricki article, but presumably one could request a computation there.)

21 April, 2009 at 7:26 am

Tricki opens its doors // La Tricki abre sus puertas « chimathera[…] More information available at: Tricki now fully live – Gowers Tricki now live – Tao […]

21 April, 2009 at 7:31 am

JoseBroxHi Terry!

I trackbacked you at my new wordpress blog (chimathera) and mentioned you in my first post as an example of a mathematician who uses (and uses well!) the “Tricki techniques”. I hope you don’t mind!

Regards, Jose Brox

1 May, 2009 at 8:58 am

How to Write a Really Good Research Paper « Successful Researcher[…] Mathematicians can also make use of the classical text How to write mathematics by Paul R. Halmos. Another potentially very promising tool for mathematicians is Tricki (the wiki of math tricks and techniques) whose aims and scope are discussed at the blogs of the Fields medalists Tim Gowers and Terence Tao, see e.g. here and here. […]

30 July, 2009 at 9:09 pm

Trucos y consejos para demostraciones Matemáticas[…] niveles superiores, es más, el lanzamiento de Tricki.org lo conocí hace unos meses gracias a un post del Dr. Terry Tao (Medalla Fields en el 2006, algo así como el Novel en Matemáticas), desde entonces la cantidad de […]

20 May, 2012 at 4:09 pm

Tricki Math Methods Website | New Math Done Right[…] Terry Tao announcement on Tricki now live. […]

25 May, 2018 at 5:47 pm

AnonymousIt seems that Tricki is not active anymore.

27 May, 2018 at 3:02 am

gowersThat’s basically correct, and it’s a phenomenon I hope to learn from. I think the fundamental problem with it was that it was quite hard to make a really good contribution to it: for a website to take off, there needs to be a lower bar to participation.