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Title: | Chromatic numbers of suborbital graphs for some hecke groups |
Authors: | Woratham Khangtragool Khuanchanok Chaichana |
Authors: | Woratham Khangtragool Khuanchanok Chaichana |
Keywords: | Mathematics |
Issue Date: | 1-Jun-2021 |
Abstract: | In this paper, we study the chromatic numbers of suborbital graphs for Hecke groups H(√ 2) and H(√ 3). We decompose each suborbital graph into disjoint isomorphic subgraphs and show that each subgraph is homomorphic to the Farey graph. Finally, we show that each suborbital graph has chromatic number 2 or 3. |
URI: | https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85110596855&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/76848 |
ISSN: | 16860209 |
Appears in Collections: | CMUL: Journal Articles |
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