385 reputation
210
bio website 4coloring.wordpress.com
location Rome, Italy
age 45
visits member for 3 years, 5 months
seen 21 hours ago

Aug
28
revised Kempe chain color swaps in a partially colored map
added 221 characters in body
Aug
21
revised Kempe chain color swaps in a partially colored map
added 33 characters in body
Jan
29
revised Question about 3-regular graphs with a restriction (also fullerene and four color theorem)
added 162 characters in body
Jan
28
revised Question about 3-regular graphs with a restriction (also fullerene and four color theorem)
added 262 characters in body
Jan
26
revised Question about 3-regular graphs with a restriction (also fullerene and four color theorem)
Corrected a type error
Nov
17
revised Help with distribution and disposition of faces in a map (four color theorem)
added 5 characters in body
Nov
25
revised Help with distribution and disposition of faces in a map (four color theorem)
added 38 characters in body
May
30
revised Is value of $\pi = 4$?
added 358 characters in body
May
19
revised Circle packing representation of a given graph
added 264 characters in body
Apr
13
revised How many different four coloring exist for a given regular map?
added 235 characters in body