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Tricki
a repository of mathematical know-how
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STATIC SNAPSHOT

This is a static snapshot of the Tricki, as it appeared in Aug 2020. The Tricki
is no longer under active development or actively maintained, but since it still
has a number of excellent articles, we are leaving this static version of the
site up. Dynamic features, such as commenting or messaging, will not work.
Searches will be redirected to an external search engine. For more information
on how the Tricki developed, see this blog post of Tim Gowers's. Do also see the
excellent site MathOverflow.


WELCOME TO THE TRICKI

Welcome to the Tricki – a Wiki-style site with a large store of useful
mathematical problem-solving techniques. Some of these techniques are very
general, while others concern particular subareas of mathematics. The idea
behind all of them is to exposit techniques that are used regularly by
mathematical problem-solvers, at every level of experience. We hope you will
enjoy using and contributing to the site.

If you are new to the Tricki, you may find the following page useful; it has
information about what the Tricki is, what its aims are, how to read, write,
find, edit, or comment on articles, and more:

Introduction to the Tricki

If you want to go straight to the articles, then you have several options. The
best way to understand what these options are is to explore the following links.
Clicking on the words "Quick description" will give you some information about
what to expect from these links.

 * Different kinds of Tricki article
   
   * What kind of problem am I trying to solve? Quick description ( A list of
     links, each to a page about some general category of problem, such as
     "proving equality", or "classification" (which will itself consist mostly
     of links to articles lower in the Tricki hierarchy). )
   
   * Subject-area front pages Quick description ( A list of links, each to a
     page about some area or subarea of mathematics. Although we are primarily
     interested in classifying articles by the type of problem they solve, it is
     in many cases natural to begin by restricting attention to the area they
     belong to. It is also desirable to have different ways of classifying
     articles, to maximize the chances that they can be found when written. )
   
   * General problem-solving tips Quick description ( A list of articles that
     give advice that can in principle apply to any mathematical problem. )
   
   * How to use mathematical concepts and statements Quick description ( You
     have heard of a definition or theorem, you know it is important because
     people say so, you know that people use it to solve problems, but to you it
     is a bit of a mystery how they use it to solve problems. If that is your
     situation, then this page is designed to help.)

There are other ways of finding articles. For more information, click on
"Navigate" in the toolbar.

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Regular maintenance: you may find that the Tricki is down for maintenance for up
to an hour every Friday at 09:00 London time (GMT+0100).

 * 1434745 reads


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RECENT ARTICLES

View a list of all articles.

 * Littlewood-Paley heuristic for derivative
 * Geometric view of Hölder's inequality
 * Diagonal arguments
 * Finding an interval for rational numbers with a high denominator
 * Try to prove a stronger result
 * Use self-similarity to get a limit from an inferior or superior limit.
 * Prove a consequence first


ACTIVE FORUM TOPICS

 * Tutorial
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 * Tricki Papers

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RECENT COMMENTS

 * I don't think this statement
 * choice of the field
 * Incorrect Image
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