Two - Graphs and Skew Two - Graphsin Finite
نویسنده
چکیده
We describe the use of two-graphs and skew (oriented) two-graphs as isomorphism invariants for translation planes and m-systems (including ovoids and spreads) of polar spaces in odd characteristic.
منابع مشابه
New skew equienergetic oriented graphs
Let $S(G^{sigma})$ be the skew-adjacency matrix of the oriented graph $G^{sigma}$, which is obtained from a simple undirected graph $G$ by assigning an orientation $sigma$ to each of its edges. The skew energy of an oriented graph $G^{sigma}$ is defined as the sum of absolute values of all eigenvalues of $S(G^{sigma})$. Two oriented graphs are said to be skew equienergetic iftheir skew energies...
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We describe the use of two-graphs and skew (oriented) twographs as isomorphism invariants for translation planes and m-systems (including ovoids and spreads) of polar spaces in odd characteristic.
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تاریخ انتشار 1995