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note on skew-eigenvalues of digraphs
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نویسنده
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taghvaee fatemeh ,fath-tabar gholam hossein
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منبع
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transactions on combinatorics - 2024 - دوره : 13 - شماره : 3 - صفحه:225 -234
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چکیده
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. let gσ be an oriented graph with underlying simple graph g. the skew-adjacency matrixof gσ is the {0, 1, −1}-matrix s = s(gσ) = [sij ], such that sij = 1 if (vi, vj ) is an arc in gσ , sij = −1if (vj , vi) is an arc in gσ and sij = 0, otherwise. in this paper, all connected oriented graphs withthree distinct skew-eigenvalues 0 and ±2i are characterized.
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کلیدواژه
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skew adjacency matrix ,oriented graph ,skew-eigenvalue
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آدرس
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university of kashan, faculty of mathematical sciences, department of mathematics, iran, university of kashan, faculty of mathematical sciences, department of mathematics, iran
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پست الکترونیکی
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fathtabar@kashanu.ac.ir
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Authors
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