Genus distribution of ladder type and cross type graphs  

作　　者：WAN LiangXia FENG KeQin LIU YanPei WANG DianJun 

机构地区：[1]Department of Mathematical Sciences,Tsinghua University,Beijing 100084,China [2]Department of Mathematics,Beijing Jiaotong University,Beijing 100044,China

出　　处：《Science China Mathematics》2009年第8期1760-1768,共9页中国科学：数学（英文版）

基　　金：supported National Natural Science Foundation of China (Grant Nos. 10571013, 60433050);the State Key Development Program of Basic Research of China (Grant No. 2004CB318004)

摘　　要：In this paper a method is given to calculate the explicit expressions of embedding genus distribution for ladder type graphs and cross type graphs. As an example, we refind the genus distri- bution of the graph Jn which is the first class of graphs studied for genus distribution where its genus depends on n.In this paper a method is given to calculate the explicit expressions of embedding genus distribution for ladder type graphs and cross type graphs. As an example, we refind the genus distribution of the graph J n which is the first class of graphs studied for genus distribution where its genus depends on n.

关 键 词：EMBEDDING genus distribution joint tree surface GENUS 05C10 05C30 

分 类 号：O157.5[理学—数学]