26 citations · 56 across the 13 of their papers we have counts for
Showing 2011 · math.COShow all
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math.CO2011
Fat Hoffman graphs with smallest eigenvalue at least
Akihiro Munemasa, Yoshio Sano, Tetsuji Taniguchi
In this paper, we show that all fat Hoffman graphs with smallest eigenvalue at least -1-τ, where τis the golden ratio, can be described by a finite set of fat (-1-τ)-irreducible Ho…
math.CO2011★ 2 cited
On Graphs with the Smallest Eigenvalue at Least , part II
Tetsuji Taniguchi
This is a continuation of the article with the same title. In this paper, the family H is the same as in the previous paper "On Graphs with the Smallest Eigenvalue at Least $-1-\sq…
math.CO2011
On fat Hoffman graphs with smallest eigenvalue at least -3
Hye Jin Jang, Jack Koolen, Akihiro Munemasa +1
We investigate fat Hoffman graphs with smallest eigenvalue at least -3, using their special graphs. We show that the special graph S(H) of an indecomposable fat Hoffman graph H is…