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Mixed Moore Cayley Graphs [PDF]
The degree-diameter problem seeks to find the largest possible number of vertices in a graph having given diameter and given maximum degree. There has been much recent interest in the problem for mixed graphs, where we allow both undirected edges and directed arcs in the graph.
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On the Mixed Minus Domination in Graphs [PDF]
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Xu, Baogen, Kong, Xiangyang
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Uniform Mixing on Cayley Graphs
We provide new examples of Cayley graphs on which the quantum walks reach uniform mixing. Our first result is a complete characterization of all $2(d+2)$-regular Cayley graphs over $\mathbb{Z}_3^d$ that admit uniform mixing at time $2\pi/9$. Our second result shows that for every integer $k\ge 3$, we can construct Cayley graphs over $\mathbb{Z}_q^d ...
Chris D. Godsil, Hanmeng Zhan
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On the Spectra of General Random Mixed Graphs [PDF]
A mixed graph is a graph that can be obtained from a simple undirected graph by replacing some of the edges by arcs in precisely one of the two possible directions. The Hermitian adjacency matrix of a mixed graph $G$ of order $n$ is the $n \times n$ matrix $H(G)=(h_{ij})$, where $h_{ij}=-h_{ji}= \boldsymbol{\mathrm{i}}$ (with $\boldsymbol{\mathrm{i}} =\
Dan Hu +3 more
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Mixed metric dimension of graphs [PDF]
arXiv admin note: text overlap with arXiv:1602 ...
Aleksander Kelenc +3 more
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Upward Planarity Testing of Embedded Mixed Graphs [PDF]
A mixed graph has both directed and undirected edges. We study an upward planarity testing problem for embedded mixed graphs and solve it using Integer Linear Programming.
Binucci, Carla +3 more
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Mixed metric dimension of hollow coronoid structure
Coronoid systems actually arrangements of hexagons into six sides of benzenoids. By nature, it is an organic chemical structure. Hollow coronoids are primitive and catacondensed coronoids. It is also known as polycyclic conjugated hydrocarbons.
Ali N.A. Koam +3 more
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A Self-Supervised Mixed-Curvature Graph Neural Network
Graph representation learning received increasing attentions in recent years. Most of the existing methods ignore the complexity of the graph structures and restrict graphs in a single constant-curvature representation space, which is only suitable to ...
Peng, Hao +6 more
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Some Covering and Packing Problems for Mixed Triples
A mixed graph has both edges and directed edges (or “arcs”). A complete mixed graph on v vertices, denoted Mv, has, for every pair of vertices u and v, an edge {u,v}, an arc (u,v), and an arc (v,u).
Benkam Bobga, Robert Gardner
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Mitre Costa Dourado +4 more
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