Inverse of $\alpha$-Hermitian Adjacency Matrix of a Unicyclic Bipartite Graph
Let $X$ be bipartite mixed graph and for a unit complex number $\alpha$, $H_\alpha$ be its $\alpha$-hermitian adjacency matrix. If $X$ has a unique perfect matching, then $H_\alpha$ has a hermitian inverse $H_\alpha^{-1}$. In this paper we give a full description of the entries of $H_\alpha^{-1}$ in...
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Zusammenfassung: | Let $X$ be bipartite mixed graph and for a unit complex number $\alpha$,
$H_\alpha$ be its $\alpha$-hermitian adjacency matrix. If $X$ has a unique
perfect matching, then $H_\alpha$ has a hermitian inverse $H_\alpha^{-1}$. In
this paper we give a full description of the entries of $H_\alpha^{-1}$ in
terms of the paths between the vertices. Furthermore, for $\alpha$ equals the
primitive third root of unity $\gamma$ and for a unicyclic bipartite graph $X$
with unique perfect matching, we characterize when $H_\gamma^{-1}$ is $\pm 1$
diagonally similar to $\gamma$-hermitian adjacency matrix of a mixed graph.
Through our work, we have provided a new construction for the $\pm 1$ diagonal
matrix. |
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DOI: | 10.48550/arxiv.2205.07010 |