期刊论文

Lv, Benjian

英文

Graphs and Combinatorics

0911-0119

2017

33

1

157-169

10.1007/s00373-016-1738-3

National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [11371072, 11301270, 11271047, 11371204, 11501036, 11671043]; Fundamental Research Funds for the Central University of China; Youth Scholar Program of Beijing Normal University; China Postdoctoral Science FoundationChina Postdoctoral Science Foundation [2015M570958]

本校为其他机构

A graph G is called a pseudo-core if every endomorphism of G is either an automorphism or a colouring. An interesting problem in graph theory is to distinguish whether a graph is a core. The twisted Grassmann graphs, constructed by van Dam and Koolen in (Invent Math 162:189-193, 2005), are the first known family of non-vertex-transitive distance-regular graphs with unbounded diameter. In this paper, we show th...