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Approximating functions by better behaved functions
06/05/2009 - 18:48
11 years 11 weeks
ago
Polynomial approximation front page
06/05/2009 - 18:42
11 years 16 weeks
ago
Approximation front page
06/05/2009 - 18:39
11 years 16 weeks
ago
To make a function nicer without changing it much, convolve it with an approximate delta function
06/05/2009 - 12:57
11 years 11 weeks
ago
To prove facts about Borel sets, use closure properties
05/05/2009 - 14:47
11 years 14 weeks
ago
Numerical integration and differentiation
05/05/2009 - 14:13
11 years 16 weeks
ago
Numerical linear algebra
05/05/2009 - 13:46
11 years 13 weeks
ago
To prove that a number is irrational, show that it is almost rational
05/05/2009 - 10:44
10 years 27 weeks
ago
Irrationality and transcendence front page
05/05/2009 - 10:44
11 years 16 weeks
ago
A non-trivial circular argument can often be usefully perturbed to a non-circular one
05/05/2009 - 00:30
9 years 30 weeks
ago
If an argument looks promising but needs a hypothesis, assume the hypothesis for now but try to remove it later
04/05/2009 - 21:41
11 years 16 weeks
ago
Use Occam's razor
04/05/2009 - 17:53
11 years 16 weeks
ago
Numerical analysis front page
04/05/2009 - 17:45
11 years 15 weeks
ago
Applied mathematics
04/05/2009 - 14:27
11 years 15 weeks
ago
Dimensional correctness and scaling
04/05/2009 - 14:11
11 years 16 weeks
ago
Modeling
04/05/2009 - 13:54
11 years 16 weeks
ago
How to solve problems about discrete groups
03/05/2009 - 03:39
11 years 16 weeks
ago
How to solve problems about finite groups
03/05/2009 - 03:37
11 years 16 weeks
ago
Use the compactness and contradiction method to derive finitary quantitative results from infinitary qualitative ones
02/05/2009 - 19:30
11 years 16 weeks
ago
If your topological invariant takes integer values, they may well be homology classes in disguise
02/05/2009 - 09:25
11 years 15 weeks
ago
When controlling an oscillatory integral, bump functions and bounded phase corrections are not very important
02/05/2009 - 00:52
11 years 16 weeks
ago
To calculate a contour integral, use theorems rather than direct calculation
01/05/2009 - 18:21
11 years 16 weeks
ago
Complex analysis front page
01/05/2009 - 12:57
11 years 15 weeks
ago
If a parameter is generating undesirable boundary terms, try averaging over many choices of that parameter
01/05/2009 - 00:43
11 years 16 weeks
ago
To show that a group element is non-trivial, show that it has a non-trivial action or image
30/04/2009 - 19:31
11 years 15 weeks
ago
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