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Lattices of properties of countable graphs and the Hedetniemi Conjecture

Dissertation (MSc)--University of Pretoria, 2013.

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Other Authors: Broere, Izak
Format: Thesis
Language:English
Published: University of Pretoria 2014
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access_status_str Open Access
author2 Broere, Izak
author_browse Broere, Izak
author_facet Broere, Izak
collection Thesis
dc_rights_str_mv © 2013 University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria.
description Dissertation (MSc)--University of Pretoria, 2013.
format Thesis
id oai:repository.up.ac.za:2263/33313
institution University of Pretoria (South Africa)
language English
last_indexed 2026-06-10T12:37:49.221Z
license_str Other — see source repository
provenance_str_mv Harvested via OAI-PMH from UPSpace — University of Pretoria Institutional Repository
publishDate 2014
publishDateRange 2014
publishDateSort 2014
publisher University of Pretoria
publisherStr University of Pretoria
record_format dspace
source_str UPSpace — University of Pretoria Institutional Repository
spelling oai:repository.up.ac.za:2263/33313 Lattices of properties of countable graphs and the Hedetniemi Conjecture Broere, Izak moroli.matsoha@up.ac.za Vetrik, Tomas Matsoha, Moroli David Vusi Lattice theory UCTD Graph theory Dissertation (MSc)--University of Pretoria, 2013. Lattices of hereditary properties of nite graphs have been extensively studied. We investigate the lattice L of induced-hereditary properties of countable graphs. Of interest to us will be some of the members of L. Much of our focus will be on hom-properties. We analyze their behaviour and consider their link to solving the long standing Hedetniemi Conjecture. We then discuss universal graphs and construct a universal graph for hom-properties. We then use these universal graphs to prove a theorem by Szekeres and Wilf. Lastly we off er a new proof of a theorem by Du ffus, Sands and Woodrow. Mathematics and Applied Mathematics Unrestricted 2014-02-07T10:04:41Z 2014-02-07T10:04:41Z 2014 2013 Dissertation Matsoha, MDV 2013, Lattices of properties of countable graphs and the Hedetniemi Conjecture, MSc dissertation, University of Pretoria, Pretoria, viewed yymmdd<http://hdl.handle.net/2263/33313> C14/4/167/gm http://hdl.handle.net/2263/33313 en © 2013 University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. application/pdf University of Pretoria
spellingShingle Lattice theory
UCTD
Graph theory
Lattices of properties of countable graphs and the Hedetniemi Conjecture
title Lattices of properties of countable graphs and the Hedetniemi Conjecture
title_full Lattices of properties of countable graphs and the Hedetniemi Conjecture
title_fullStr Lattices of properties of countable graphs and the Hedetniemi Conjecture
title_full_unstemmed Lattices of properties of countable graphs and the Hedetniemi Conjecture
title_short Lattices of properties of countable graphs and the Hedetniemi Conjecture
title_sort lattices of properties of countable graphs and the hedetniemi conjecture
topic Lattice theory
UCTD
Graph theory
url http://hdl.handle.net/2263/33313