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http://elar.urfu.ru/handle/10995/95302
Полная запись метаданных
Поле DC | Значение | Язык |
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dc.contributor.author | Efimov, Konstantin S. | en |
dc.contributor.author | Makhnev, Alexander A. | en |
dc.date.accessioned | 2021-01-28T10:47:57Z | - |
dc.date.available | 2021-01-28T10:47:57Z | - |
dc.date.issued | 2020 | - |
dc.identifier.citation | Efimov K. S. Distance-Regular Graph with Intersection Array {27, 20, 7; 1, 4, 21} Does not Exist / Konstantin S. Efimov, Alexander A. Makhnev. — DOI 10.15826/umj.2020.2.006. — Text : electronic // Ural Mathematical Journal. — 2020. — Volume 6. — № 2. — С. 63-67. | en |
dc.identifier.issn | 2414-3952 | - |
dc.identifier.uri | http://elar.urfu.ru/handle/10995/95302 | - |
dc.description.abstract | In the class of distance-regular graphs of diameter 3 there are 5 intersection arrays of graphs with at most 28 vertices and noninteger eigenvalue. These arrays are {18,14,5;1,2,14}, {18,15,9;1,1,10}, {21,16,10;1,2,12}, {24,21,3;1,3,18}, and {27,20,7;1,4,21}. Automorphisms of graphs with intersection arrays {18,15,9;1,1,10} and {24,21,3;1,3,18} were found earlier by A.A. Makhnev and D.V. Paduchikh. In this paper, it is proved that a graph with the intersection array {27,20,7;1,4,21} does not exist. | en |
dc.description.sponsorship | This work was supported by RFBR and NSFC (project No.20-51-53013). | en |
dc.format.mimetype | application/pdf | en |
dc.language.iso | en | en |
dc.publisher | N.N. Krasovskii Institute of Mathematics and Mechanics of the Ural Branch of Russian Academy of Sciences | en |
dc.publisher | Ural Federal University named after the first President of Russia B.N. Yeltsin | en |
dc.relation.ispartof | Ural Mathematical Journal. 2020. Volume 6. № 2 | en |
dc.rights | Creative Commons Attribution License | en |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | - |
dc.subject | DISTANCE-REGULAR GRAPH | en |
dc.subject | GRAPH Γ WITH STRONGLY REGULAR GRAPH Γ3 | en |
dc.subject | AUTOMORPHISM | en |
dc.title | Distance-Regular Graph with Intersection Array {27, 20, 7; 1, 4, 21} Does not Exist | en |
dc.type | Article | en |
dc.type | info:eu-repo/semantics/article | en |
dc.type | info:eu-repo/semantics/publishedVersion | en |
dc.identifier.doi | 10.15826/umj.2020.2.006 | - |
local.description.firstpage | 63 | - |
local.description.lastpage | 67 | - |
local.issue | 2 | - |
local.volume | 6 | - |
local.fund.rffi | 20-51-53013 | - |
Располагается в коллекциях: | Ural Mathematical Journal |
Файлы этого ресурса:
Файл | Описание | Размер | Формат | |
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umj_2020_6_2_63-67.pdf | 100,03 kB | Adobe PDF | Просмотреть/Открыть |
Лицензия на ресурс: Лицензия Creative Commons