Mohammad Abudayah

collaborators

4 papers

math.CO2022

The $γ$ -Signless Laplacian Adjacency Matrix of Mixed Graphs

Omar Alomari, Mohammad Abudayah, Manal Ghanem

The $α$ -Hermitian adjacency matrix $H_{α}$ of a mixed graph $X$ has been recently introduced. It is a generalization of the adjacency matrix of unoriented graphs. In this paper, we c…

math.CO2022

Inverse of $α$ -Hermitian Adjacency Matrix of a Unicyclic Bipartite Graph

Mohammad Abudayah, Omar Alomari, Omar AbuGhneim

Let $X$ be bipartite mixed graph and for a unit complex number $α$ , $H_{α}$ be its $α$ -hermitian adjacency matrix. If $X$ has a unique perfect matching, then $H_{α}$ has a hermitian in…

math.CO2022

Incidence matrices and line graphs of mixed graphs

Mohammad Abudayah, Omar Alomari, Torsten Sander

In the theory of line graphs of undirected graphs there exists an important theorem linking the incidence matrix of the root graph to the adjacency matrix of its line graph. For di…

math.CO2018

Spectrum of free-form Sudoku graphs

Mohammad Abudayah, Omar Alomari, Torsten Sander

A free-form Sudoku puzzle is a square arrangement of m times m cells such that the cells are partitioned into m subsets (called blocks) of equal cardinality. The goal of the puzzle…

The γ-Signless Laplacian Adjacency Matrix of Mixed Graphs

Inverse of α-Hermitian Adjacency Matrix of a Unicyclic Bipartite Graph

Incidence matrices and line graphs of mixed graphs

Spectrum of free-form Sudoku graphs

The $γ$ -Signless Laplacian Adjacency Matrix of Mixed Graphs

Inverse of $α$ -Hermitian Adjacency Matrix of a Unicyclic Bipartite Graph