期刊论文、会议论文

Huang, Li-Ping;Lv, Benjian;Wang, Kaishun

英文

ARS MATHEMATICA CONTEMPORANEA

1855-3966

2016

10

2

383-392

6th Workshop on Graph Embeddings and Maps on Surfaces (GEMS)

JUL 14-19, 2013

Smolenice, SLOVAKIA

[Huang, Li-Ping] Changsha Univ Sci & Technol, Sch Math, Changsha 410004, Hunan, Peoples R China.^[Lv, Benjian;Wang, Kaishun] Beijing Normal Univ, Sch Math Sci & Lab Math Com Sys, Beijing 100875, Peoples R China.

GLAGOLJASKA 8, KOPER, SI-6000, SLOVENIA

UP FAMNIT

10.26493/1855-3974.780.362

Projects 11371072, 11301270, 11271047, 11371204, 11501036 supported by NSFC. Supported by the Fundamental Research Funds for the Central University of China, Youth Scholar Program of Beijing Normal University (2014NT31) and China Postdoctoral Science Foundation (2015M570958).

本校为第一且通讯机构

A graph G is a core if every endomorphism of G is an automorphism. A graph is called a pseudo-core if every its endomorphism is either an automorphism or a colouring. Suppose that J(q) (n, m) is a Grassmann graph over a finite field with q elements. We show that every Grassmann graph is a pseudo-core. Moreover, J(2) (4, 2) is not a core ...