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


Sep
4
revised example of graph such that deleting any edge couses lack of automorphism
added 6 characters in body
Sep
4
comment example of graph such that deleting any edge couses lack of automorphism
@bof Err I meant minimum degree $\ge$ 1
Sep
4
answered example of graph such that deleting any edge couses lack of automorphism
Sep
1
comment Graph with small average degree has two vertices of small degree
@Casteels I've seen the claim only in the linked document.
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!