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May
28
accepted Fractional Edge Coloring of Snarks
May
28
comment Fractional Edge Coloring of Snarks
Excellent. Many thanks.
May
25
asked Fractional Edge Coloring of Snarks
Feb
14
awarded  Nice Answer
Feb
9
awarded  Necromancer
Feb
9
awarded  Editor
Feb
9
revised Why can a Venn diagram for 4+ sets not be constructed using circles?
added 20 characters in body
Feb
9
comment Why can a Venn diagram for 4+ sets not be constructed using circles?
Given that it is an MAA journal (nonprofit organization) I don't mind and I doubt anyone would. Still they do own the copyright, so this it not a trivial question. But I won't worry about it.
Feb
9
answered Why can a Venn diagram for 4+ sets not be constructed using circles?
Jan
6
awarded  Necromancer
Dec
9
comment Fractional chromatic number of fullerenes
Checking over my database I found that 3 of the 100-200 fullerenes I examined did not have 5/2... So this is intriguing. If your proof, Angela, holds water, then there will be something funny about these 3 cases. I double-checked with others that my fractional chi is correct on these 3. Example:
Dec
9
awarded  Supporter
Dec
5
comment Fractional chromatic number of fullerenes
The ones I checked are up to 50 vertices. I am told that perhaps things don't get interesting until they are much larger, so maybe there is nothing to this "conjecture" about 5/2.
Dec
2
awarded  Student
Dec
2
asked Fractional chromatic number of fullerenes
Nov
26
answered Banach-Tarski Paradox for the unit interval?
Nov
21
answered how to find this generating function
Nov
18
answered 4-Color Theorem on Surfaces
Nov
14
awarded  Nice Answer
Sep
8
answered An algorithm for making conditionally convergent series take arbitrary values?