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What and Who

Graph planarity, Duality and Related Topics

Alexander Kelmans
RUTCOR, Rutgers University , New Brunswick, NJ
Seminar des Graduiertenkollegs
AG 1, AG 2, AG 3, INET, AG 4, AG 5, D6, RG1, SWS  
AG Audience
English

Date, Time and Location

Monday, 21 July 97
16:00
60 Minutes
Gebaeude 45
EG, Raum 016
Saarbrücken

Abstract

Graph planarity theory is one of the classical fields on

graph theory; it is part of the theory of graph embeddings
into surfaces of different types. Interconnections exist
e.g. with matroid theory, linear algebra, graph minors and
convex polytopes.

We describe some old and new results on graph planarity and duality.
We discuss the relationships between some known planarity criteria.
We also describe further developments and approaches in graph
planarity theory that use ideas of decomposition and lead to various
strengthenings of some known criteria. New results concern
strengthenings of some classical planarity criteria for quasi
4-connected graphs, for bipartite quasi 4-connected graphs,
and for cubic bipartite graphs.

Further we give generalizations of classical results
of Whitney and Kuratowski in this area and show some results
on Dirac's and Barnette's conjectures.

Contact

Christoph Hundack
9325-128
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