Intersection Preserving Mappings

Autor: William L. Kocay, Yangsheng Zou
Rok vydání: 2017
Předmět:
Zdroj: Graphs and Combinatorics. 33:1081-1087
ISSN: 1435-5914
0911-0119
DOI: 10.1007/s00373-017-1795-2
Popis: The intersection preserving mapping problem was introduced by Czimmermann in his research on isomorphism of hypergraphs. This paper explores the condition when an intersection preserving mapping is not induced by any bijection. A new characterization of intersection preserving mappings is presented, and a generalization of Whitney’s line graph isomorphism theorem is proved.
Databáze: OpenAIRE