Minimal Obstructions for 1-Immersions and Hardness of 1-Planarity Testing

Author:

Korzhik Vladimir P.1,Mohar Bojan2

Affiliation:

1. NATIONAL UNIVERSITY OF CHERNIVTSI CHERNIVTSI UKRAINE AND INSTITUTE OF APPLIED PROBLEMS OF MECHANICS AND MATHEMATICS OF NATIONAL ACADEMY OF SCIENCE OF UKRAINE; LVIV; UKRAINE

2. DEPARTMENT OF MATHEMATICS; SIMON FRASER UNIVERSITY; BURNABY; B.C. V5A 1S6; CANADA

Publisher

Wiley

Subject

Geometry and Topology,Discrete Mathematics and Combinatorics

Reference15 articles.

1. Solution of Ringel's problem about vertex bound colouring of planar graphs and colouring of 1-planar graphs;Borodin;Metody Discret Anal,1984

2. A new proof of the 6-color theorem;Borodin;J Graph Theory,1995

3. Acyclic colouring of 1-planar graphs;Borodin;Discrete Anal Oper Res,1999

4. Bemerkungen zu einen Sechsfarbenproblem von G. Ringel;Bodendiek;Abh Math Semin Univ Hamburg,1983

5. Approximation algorithms for independent sets in map graphs;Chen;J Algorithms,2001

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