Results 11 to 20 of about 906 (135)
The degree sequence of Fibonacci and Lucas cubes
The Fibonacci cube $\Gamma_n$ is the subgraph of the $n$-cube induced by the binary strings that contain no two consecutive 1's. The Lucas cube $\Lambda_n$ is obtained from $\Gamma_n$ by removing vertices that start and end with 1. It is proved that the number of vertices of degree $k$ in $\Gamma_n$ and $\Lambda_n$ is $\sum_{i = 0}^k \binom{n-2i}{k-i} \
Sandi Klavžar +2 more
exaly +4 more sources
On the Wiener index of generalized Fibonacci cubes and Lucas cubes
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Sandi Klavžar, Yoomi Rho
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Vertex and Edge Orbits of Fibonacci and Lucas Cubes [PDF]
The Fibonacci cube $Γ_n$ is obtained from the $n$-cube $Q_n$ by removing all the vertices that contain two consecutive 1s. If, in addition, the vertices that start and end with 1 are removed, the Lucas cube $Λ_n$ is obtained. The number of vertex and edge orbits, the sets of the sizes of the orbits, and the number of orbits of each size, are determined
Jernej Azarija +2 more
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Maximal hypercubes in Fibonacci and Lucas cubes
The Fibonacci cube $Γ_n$ is the subgraph of the hypercube induced by the binary strings that contain no two consecutive 1's. The Lucas cube $Λ_n$ is obtained from $Γ_n$ by removing vertices that start and end with 1. We characterize maximal induced hypercubes in $Γ_n$ and $Λ_n$ and deduce for any $p\leq n$ the number of maximal $p$-dimensional ...
Michel Mollard
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On the domination number and the 2-packing number of Fibonacci cubes and Lucas cubes
Let $\Gamma_n$ and $\Lambda_n$ be the $n$-dimensional Fibonacci cube and Lucas cube, respectively. The domination number $\gamma$ of Fibonacci cubes and Lucas cubes is studied. In particular it is proved that $\gamma(\Lambda_{n})$ is bounded below by $\left\lceil\frac{L_{n}-2n}{n-3}\right\rceil$, where $L_n$ is the $n$-th Lucas number.
Sandi Klavžar +2 more
exaly +4 more sources
Generalized Fibonacci and Lucas cubes arising from powers of paths and cycles
19 pages.
Pietro Codara
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Distance cube polynomials of Fibonacci and Lucas-run graphs
The Fibonacci-run graphs $\mathcal{R}_n$ are a family of an induced subgraph of hypercubes introduced by Eğecioğlu and Iršič in 2021. A cyclic version of $\mathcal{R}_n$, the Lucas-run graph $\mathcal{R}_n^l$, was also recently proposed (Jianxin Wei, 2024). We prove that the generating function previously given for the polynomial $D_{\mathcal{R}_n}(x,q)
Michel Mollard
exaly +3 more sources
The Mostar Index of Fibonacci and Lucas Cubes [PDF]
The Mostar index of a graph was defined by Došlić, Martinjak, Škrekovski, Tipurić Spužević and Zubac in the context of the study of the properties of chemical graphs. It measures how far a given graph is from being distance-balanced. In this paper, we determine the Mostar index of two well-known families of graphs: Fibonacci cubes and Lucas cubes.
Ömer Eğecioğlu +2 more
openaire +5 more sources
We introduce alternate Lucas cubes, a new family of graphs designed as an alternative for the well known Lucas cubes. These interconnection networks are subgraphs of Fibonacci cubes and have a useful fundamental decomposition similar to the one for Fibonacci cubes.
Ömer Egecioglu +2 more
openaire +3 more sources
Euler numbers and diametral paths in Fibonacci cubes, Lucas cubes and alternate Lucas cubes
The diameter of a graph is the maximum distance between pairs of vertices in the graph. A pair of vertices whose distance is equal to its diameter is called diametrically opposite vertices. The collection of shortest paths between diametrically opposite vertices is referred as diametral paths.
Ömer Egecioglu +2 more
openaire +4 more sources

