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Top Questions
29
votes
How many positive integers $< 1{,}000{,}000$ contain the digit $2$?
combinatorics
asked Feb 9, 2014 at 17:13
math.stackexchange.com
8
votes
Binomial Coefficients Proof: $\sum_{k=0}^n {n \choose k} ^{2} = {2n \choose n}$.
combinatorics
summation
binomial-coefficients
asked Feb 10, 2014 at 8:06
math.stackexchange.com
7
votes
Prove that a number is even, given the cube is even
elementary-number-theory
asked Feb 5, 2014 at 20:07
math.stackexchange.com
6
votes
moving from sphere spectrum to finite spectrum
at.algebraic-topology
stable-homotopy
limits-and-colimits
asked Jan 15, 2020 at 20:49
mathoverflow.net
6
votes
multiplicative structure of Ext
at.algebraic-topology
homological-algebra
spectral-sequences
derived-functors
asked Jan 25, 2020 at 1:30
mathoverflow.net
6
votes
Frey Curve as a Solution to FLT
algebraic-geometry
algebraic-number-theory
algebraic-curves
asked Oct 31, 2013 at 19:39
math.stackexchange.com
6
votes
when is rational function regular?
algebraic-geometry
functions
asked Mar 26, 2014 at 13:09
math.stackexchange.com
6
votes
Prove that Something is an Affine Variety (elementary)
algebraic-geometry
asked Mar 26, 2014 at 14:24
math.stackexchange.com
6
votes
What can we say about the image of a regular map?
algebraic-geometry
asked Mar 29, 2014 at 11:04
math.stackexchange.com
5
votes
Math opportunities for a graduate
soft-question
asked Sep 26, 2014 at 0:24
math.stackexchange.com
Top Answers
No answers with score of 5 or more
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