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KCd
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125
Why it is important to write a function as sum of even and odd functions?
Dec 12, 2020
119
Why, historically, do we multiply matrices as we do?
Jan 7, 2013
101
Can you give an example of a complex math problem that is easy to solve?
Dec 6, 2011
71
Are all algebraic integers with absolute value 1 roots of unity?
Sep 9, 2010
67
Why is Galois correspondence intuitively plausible?
May 20, 2021
58
Looking for a definitive source about Dirichlet finally proving the Unit Theorem in the Sistine Chapel
Aug 27, 2012
56
Irreducibility of $x^n-x-1$ over $\mathbb Q$
May 18, 2014
53
Intuitive explanation of Cauchy's Integral Formula in Complex Analysis
Sep 5, 2010
44
Basis of primitive nth Roots in a Cyclotomic Extension?
Dec 9, 2011
43
Best Fake Proofs? (A M.SE April Fools Day collection)
Apr 1, 2013
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265
Consequences of the Riemann hypothesis
233
Widely accepted mathematical results that were later shown to be wrong?
115
Demystifying complex numbers
89
Why is Lebesgue integration taught using positive and negative parts of functions?
89
There is a nice theory of quadratic forms. How about cubic forms, quartic forms, quintic forms, ...?