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Prove that a sequence converges by passing to a subsequence
25/04/2009 - 08:08
10 years 18 weeks
ago
Do an extreme case first
25/04/2009 - 03:52
11 years 15 weeks
ago
If you don't have an identity element, a set of local units is more than enough
25/04/2009 - 00:48
11 years 17 weeks
ago
How to work without an identity element when you clearly need it
25/04/2009 - 00:48
11 years 16 weeks
ago
New groups from old
25/04/2009 - 00:35
11 years 13 weeks
ago
Decompose your ring using idempotents
25/04/2009 - 00:29
11 years 17 weeks
ago
Use the implicit function theorem to prove smoothness
24/04/2009 - 23:43
11 years 15 weeks
ago
Strengthen your inductive hypothesis
24/04/2009 - 20:20
11 years 16 weeks
ago
To optimize a sum try making the terms roughly equal in size
24/04/2009 - 19:48
11 years 17 weeks
ago
Keep parameters unspecified until it is clear how to optimize them
24/04/2009 - 19:41
11 years 16 weeks
ago
To evaluate an integral, differentiate under the integral sign
24/04/2009 - 16:15
11 years 17 weeks
ago
Use an appropriate series expansion
24/04/2009 - 15:57
11 years 15 weeks
ago
Bounded functions that behave almost everywhere are Riemann integrable
24/04/2009 - 15:04
11 years 15 weeks
ago
How to prove from first principles that a function is Riemann integrable
24/04/2009 - 14:46
11 years 17 weeks
ago
Differential equations front page
24/04/2009 - 13:57
11 years 17 weeks
ago
Methods for bounding oscillatory integrals
23/04/2009 - 17:28
11 years 16 weeks
ago
Methods for bounding non-oscillatory integrals
23/04/2009 - 17:25
10 years 18 weeks
ago
General methods for estimating integrals
23/04/2009 - 17:19
11 years 17 weeks
ago
Evaluating indefinite integrals
23/04/2009 - 12:20
11 years 17 weeks
ago
How to use the Cauchy-Schwarz inequality
23/04/2009 - 02:52
10 years 29 weeks
ago
Some useful examples of graphs
23/04/2009 - 02:42
11 years 18 weeks
ago
Use Fourier transforms to calculate derivatives
23/04/2009 - 00:29
11 years 16 weeks
ago
Add and subtract something nearby that is simpler
23/04/2009 - 00:27
11 years 17 weeks
ago
I have a problem about integration
23/04/2009 - 00:02
5 years 5 weeks
ago
Interchange integrals or sums
22/04/2009 - 23:26
11 years 17 weeks
ago
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