S. A. Mojallal

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20172026

most citedRiordan graphs II: Spectral properties

1 citations · 2 across the 15 of their papers we have counts for

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math.CO2017

Open problem on $σ$ -invariant

Kinkar Ch. Das, Seyed Ahmad Mojallal

Let $G$ be a graph of order $n$ with $m$ edges. Also let $μ_{1} \geq μ_{2} \geq \dots \geq μ_{n - 1} \geq μ_{n} = 0$ be the Laplacian eigenvalues of graph $G$ and let $σ = σ (G)$ $(1 \leq σ \leq n)$ …

math.CO2017★ 1 cited

Riordan graphs I: Structural properties

Gi-Sang Cheon, Ji-Hwan Jung, Sergey Kitaev +1

In this paper, we use the theory of Riordan matrices to introduce the notion of a Riordan graph. The Riordan graphs are a far-reaching generalization of the well known and well stu…

Open problem on σ-invariant

Riordan graphs I: Structural properties

Open problem on $σ$ -invariant