Coloring count cones of planar graphs
Coloring count cones of planar graphs
复制标题
平面图的着色计数锥
DOI:
10.1002/jgt.22767
复制
发表时间:
2021
影响因子:
0.9
通讯作者:
Lidický, Bernard
中科院分区:
文献类型:
--
作者:
Dvořák, Zdeněk;Lidický, Bernard
For a plane near‐triangulationwith the outer face bounded by a cycle, letdenote the function that to each 4‐coloringofassigns the number of waysextends to a 4‐coloring of. The Block‐count reducibility argument (which has been developed in connection with attempted proofs of the Four Color Theorem) is equivalent to the statement that the functionbelongs to a certain cone in the space of all functions from 4‐colorings ofto real numbers. We investigate the properties of this cone for, formulate a conjecture strengthening the Four Color Theorem, and present evidence supporting this conjecture.
DOI:
--
发表时间:
--
期刊:
Transactions of the Royal Society of Edinburgh
影响因子:
--
作者:
Tait
通讯作者:
Tait