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A new distance-regular graph of diameter 3 on 1024 vertices Научная публикация

Журнал Designs, Codes and Cryptography
ISSN: 0925-1022 , E-ISSN: 1573-7586
Вых. Данные Год: 2019, Том: 87, Номер: 9, Страницы: 2091-2101 Страниц : 11 DOI: 10.1007/s10623-019-00609-w
Ключевые слова Distance-regular graphs, completely regular codes, uniformly packed codes, additive quaternary codes
Авторы Shi M. 1 , Krotov D.S. 2 , Solé P. 3
Организации
1 School of Mathematical Sciences, Anhui University, Hefei 230601, Anhui, China
2 Sobolev Institute of Mathematics, pr. Akademika Koptyuga 4, Novosibirsk, Russia 630090
3 4CNRS/LAGA, University of Paris 8, 2 rue de la Liberté, 93 526 Saint-Denis, France

Реферат: The dodecacode is a nonlinear additive quaternary code of length 12. By puncturing it at any of the twelve coordinates, we obtain a uniformly packed code of distance 5. In particular, this latter code is completely regular but not completely transitive. Its coset graph is distance-regular of diameter three on 2^{10} vertices, with new intersection array {33,30,15;1,2,15}. The automorphism groups of the code, and of the graph, are determined. Connecting the vertices at distance two gives a strongly regular graph of (previously known) parameters (2^{10},495,238,240). Another strongly regular graph with the same parameters is constructed on the codewords of the dual code. A non trivial completely regular binary code of length 33 is constructed.
Библиографическая ссылка: Shi M. , Krotov D.S. , Solé P.
A new distance-regular graph of diameter 3 on 1024 vertices
Designs, Codes and Cryptography. 2019. V.87. N9. P.2091-2101. DOI: 10.1007/s10623-019-00609-w WOS Scopus РИНЦ OpenAlex
Даты:
Поступила в редакцию: 26 июн. 2018 г.
Принята к публикации: 10 янв. 2019 г.
Опубликована online: 24 янв. 2019 г.
Идентификаторы БД:
Web of science: WOS:000483581300009
Scopus: 2-s2.0-85060695632
РИНЦ: 41616075
OpenAlex: W3105536874
Цитирование в БД:
БД Цитирований
Web of science 10
Scopus 11
OpenAlex 10
Альметрики: