Zobrazeno 1 - 3
of 3
pro vyhledávání: '"Brhane Gebremichel"'
Autor:
Jack Koolen, Brhane Gebremichel
Publikováno v:
The Electronic Journal of Combinatorics. 29
In this paper we show that there does not exist a strongly regular graph with parameters $(1911, 270, 105, 27)$.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b43f16eb5b0eeb56f08e3617caaa0687
https://doi.org/10.37236/10675
https://doi.org/10.37236/10675
In this paper we give two characterizations of the $p \times q$-grid graphs as co-edge-regular graphs with four distinct eigenvalues.
18 pages, 1 table
18 pages, 1 table
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7a6cedcfde308c81aed0e151fc0703da
http://arxiv.org/abs/2103.02428
http://arxiv.org/abs/2103.02428
Let $\lambda\geq2$ be an integer. For strongly regular graphs with parameters $(v, k, a,c)$ and smallest eigenvalue $-\lambda$, Neumaier gave two bounds on $c$ by using algebraic property of strongly regular graphs. In this paper, we will study a new
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4d28bcb431a722209c6317ea11c37c30
http://arxiv.org/abs/1904.01274
http://arxiv.org/abs/1904.01274