Therefore, we have to consider a weak problem, that is, toclassify the (2,3)-choosable complete bipartite graphs.

事實上www.99riav4.com，這是一項困難的工怍即使是對3一可選的完全二部圖欧美三级片又粗又长，也是如此有码无码日韩精品视频。

If G is acyclically L-list colorable for any list assignment with |L|≥κfor all v∈V,then G is acyclicallyκ-choosable.The acyclic list chromatic number,denoted byχ_a~l,of a graph G is the smallest integerκsuch that G is acyclicallyκ-choosable.

若對滿足|L|≥κ国产高中生视频，v∈V的色列表L在线免费看avav，G都是無圈L-可染的，那么稱G是無圈κ-可選擇的日韩乱伦一区二区三区。G的無圈列表色數(shù)χ_a~l是使得G是無圈κ-可選擇的最小的非負整數(shù)κ一级欧美黄色网站。

In addition, we prove that every planar graph without 4-circuits and intersecting triangles is (3, l)*-choosable.

此外，論文還證明了每個無4-圈和相交三角形的平面圖是(3一本A片，1)~*-可選色的免费国产黄网站在线观看。

Used the way of discharging to prove that every planar graph without 4-cycles and i-cycles for some i ∈{5,6,7} is (3, l)*-choosable, when they studied the list improper colorings of plane graphs.

72在研究平面圖的列表非正常染色時，結(jié)合歐拉公式用放電的方法證明了每個不含4-圈和i-圈的平面圖是(3曰韩美女乱婬免费视频网站，1)~*-可選的亚洲欧美激情小说另类，其中i∈{5国产黄色性爱视频，6，7}奇米第四色888。

Header or footer can be specified with choosable font and size and with optional page number.

頁眉或頁腳www.99cao.com，可以指定可選的字體和大小和可選的頁碼。