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What and Who
Title:The structure of total dominating sets
Speaker:Oliver Schaudt
coming from:U Cologne
Speakers Bio:
Event Type:AG1 Mittagsseminar (own work)
Visibility:D1, D3, D5, SWS, D4, RG1, MMCI
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Level:AG Audience
Date, Time and Location
Date:Friday, 14 January 2011
Duration:30 Minutes
Building:E1 4

Recently, Bacso and Tuza proved a theorem that gives a full characterization of the graphs that hereditarily have a connected dominating set satisfying prescribed hereditary properties. Their result is a 'high point' in the development of structural domination and completely solves a question which was (implicitely) stated 25 years ago.

Using their result, we derive a characterization of the graphs that hereditarily have a total dominating set whose connected components satisfy certain prescribed hereditary properties. This is the total domination equivalent to the theorem of Bacso and Tuza. In particular, our theory provides a characterization of the graphs that hereditarily have a total dominating set inducing the disjoint union of complete graphs. This inherits a characterization of the graphs whose any subgraph has a vertex-dominating induced matching. However, some cases do not permit a 'nice' characterization. We also discuss this phenomenon and give some partial characterizations.

Name(s):Benjamin Doerr
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Created:Benjamin Doerr/AG1/MPII/DE, 12/21/2010 02:26 PM Last modified:Uwe Brahm/MPII/DE, 11/24/2016 04:13 PM
  • Benjamin Doerr, 12/30/2010 02:07 PM
  • Benjamin Doerr, 12/21/2010 02:26 PM -- Created document.