Avoiding monochromatic maximal antichains
dc.contributor.advisor | Woodrow, Robert E. | |
dc.contributor.author | Goddard, Edward Wayne | |
dc.date.accessioned | 2005-08-05T16:50:03Z | |
dc.date.available | 2005-08-05T16:50:03Z | |
dc.date.issued | 1992 | |
dc.description | Bibliography: p. 72-73. | en |
dc.description.abstract | A vertex coloring of a (possibly infinite) poset P 1s called good iff it leaves no nontrivial maximal antichain in P monochromatic. What is the minimum number of colors for which P admits a good coloring? By extending the result for finite posets, it can be shown that if P is well-founded and contains an element with no maximal antichain above it, then P admits a good three-coloring. For products of chains we exploit properties of cofinal and coinitial sequences to obtain good two-colorings in certain cases, the covering chain and club coloring results. As well, we introduce the concept of half-maximal antichain for its potential applications and its own merit. While attempting to extend the positive results thus far obtained, we found examples that violated the conditions of those results. At this point we are unable to determine the number of colors required by such examples. | |
dc.format.extent | vii, 73 leaves ; 30 cm. | en |
dc.identifier.citation | Goddard, E. W. (1992). Avoiding monochromatic maximal antichains (Master's thesis, University of Calgary, Calgary, Canada). Retrieved from https://prism.ucalgary.ca. doi:10.11575/PRISM/19720 | en_US |
dc.identifier.doi | http://dx.doi.org/10.11575/PRISM/19720 | |
dc.identifier.isbn | 0315791632 | en |
dc.identifier.lcc | QA 171.485 G63 1992 | en |
dc.identifier.uri | http://hdl.handle.net/1880/31032 | |
dc.language.iso | eng | |
dc.publisher.institution | University of Calgary | en |
dc.publisher.place | Calgary | en |
dc.rights | University of Calgary graduate students retain copyright ownership and moral rights for their thesis. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission. | |
dc.subject.lcc | QA 171.485 G63 1992 | en |
dc.subject.lcsh | Partially ordered sets | |
dc.title | Avoiding monochromatic maximal antichains | |
dc.type | master thesis | |
thesis.degree.discipline | Mathematics and Statistics | |
thesis.degree.grantor | University of Calgary | |
thesis.degree.name | Master of Science (MSc) | |
ucalgary.item.requestcopy | true | |
ucalgary.thesis.accession | Theses Collection 58.002:Box 820 520535244 | |
ucalgary.thesis.notes | offsite | en |
ucalgary.thesis.uarcrelease | y | en |
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