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


Aug
26
comment Graph with small average degree has two vertices of small degree
Thanks, as a further reference the claim is stated in the Second section of arxiv.org/abs/1306.4434
Aug
26
accepted Graph with small average degree has two vertices of small degree
Aug
26
asked Graph with small average degree has two vertices of small degree
Aug
15
comment Gallai & Milgram path covers theorem from Diestel
@LeenDroogendijk I am not sure. In what way do you think I could be confusing this?
Aug
14
revised Gallai & Milgram path covers theorem from Diestel
added 1 character in body
Aug
14
asked Gallai & Milgram path covers theorem from Diestel
Jul
23
comment Graph containing every trees of size $n$ as subgraphs
@manuellafond It was presented by Szemerédi at the Erdos conference last year.
Jul
22
answered Graph containing every trees of size $n$ as subgraphs
Jul
16
revised Chromatic number of generalized hypercube
added 216 characters in body
Jul
16
revised Chromatic number of generalized hypercube
added 299 characters in body
Jul
16
answered Chromatic number of generalized hypercube
Jul
10
awarded  Civic Duty
Jul
2
awarded  Curious
Jul
2
awarded  Inquisitive
Jun
30
awarded  Notable Question
Jun
29
comment Complexity of counting the number of triangles of a graph
@EricTowers No. It even turns out that a faster triangle counting algorithm would result in a faster matrix multiplication algorithm!
Jun
24
asked Constructing an eigenvector for a certain matrix representing a graph with a perfect code
May
29
accepted $n^n$ cannot be expressed as a recurrence with polynomial coefficents
May
28
comment $n^n$ cannot be expressed as a recurrence with polynomial coefficents
@vadim123 Hm.. I don't see how may I use that. Could you explain a bit more?
May
27
asked $n^n$ cannot be expressed as a recurrence with polynomial coefficents