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If you have any good math exercises to share feel free to contribute them on http://exwiki.org


Nov
2
accepted Showing that a specific regular graph has a trivial automorphism group
Nov
2
comment Showing that a specific regular graph has a trivial automorphism group
Thanks for the reply. Do you happen to see a quick argument why automorphisms preserve distances as you described?
Nov
2
asked Showing that a specific regular graph has a trivial automorphism group
Oct
29
accepted Arc transitivity of the complete graph
Oct
27
asked Arc transitivity of the complete graph
Oct
26
revised Connectedness of a regular graph and the multiplicity of its eigenvalue
the new title makes more sense to me since there is no result like that for nonregular graphs
Oct
26
suggested suggested edit on Connectedness of a regular graph and the multiplicity of its eigenvalue
Oct
24
revised Proof a bipartite graph problem
added 9 characters in body
Oct
24
revised Proof a bipartite graph problem
added 466 characters in body
Oct
24
comment Proof a bipartite graph problem
You can simply say that vertices at odd distance from $v$ form one bipartition of $G$ and vertices at even distance the other bipartition. Then you use the same argument with the even cycle.
Oct
23
answered Proof a bipartite graph problem
Oct
13
comment Question related to a proof about the multiplicity of some eigenvalues
That's exactly what I needed. Thank you.
Oct
13
accepted Question related to a proof about the multiplicity of some eigenvalues
Oct
13
asked Question related to a proof about the multiplicity of some eigenvalues
Oct
10
comment Simple Group Question
The problem is that inverses are not necessary in $\mathbb{Z}$
Oct
9
revised proving $(cov(X,Y))^2 \leq var(X)var(Y)$ with cauchy schwarz
capitalized the X in the title
Oct
9
suggested suggested edit on proving $(cov(X,Y))^2 \leq var(X)var(Y)$ with cauchy schwarz
Oct
1
accepted Estimate for the product of primes less than n
Sep
30
comment Estimate for the product of primes less than n
@MartinSleziak No this is not the same question.
Sep
30
asked Estimate for the product of primes less than n