標題: A note on triangle-free distance-regular graphs with a(2) not equal 0
作者: Pan, Yeh-jong
Weng, Chih-wen
應用數學系
Department of Applied Mathematics
關鍵字: Distance-regular graphs;Classical parameters
公開日期: 1-一月-2009
摘要: Let Gamma denote a distance-regular graph with classical parameters (D, b, alpha, beta) and D >= 3. Assume the intersection numbers a(1) = 0 and a(2) not equal 0. We show that the intersection number c(2) is either 1 or 2, and if c(2) = 1, then (b, alpha, beta) = (-2, -2, ((-2)(D+l) - 1)/3). (C) 2008 Elsevier Inc. All rights reserved.
URI: http://dx.doi.org/10.1016/j.jctb.2008.07.005
http://hdl.handle.net/11536/7938
ISSN: 0095-8956
DOI: 10.1016/j.jctb.2008.07.005
期刊: JOURNAL OF COMBINATORIAL THEORY SERIES B
Volume: 99
Issue: 1
起始頁: 266
結束頁: 270
顯示於類別:期刊論文


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