Two Graphs with a Common Edge
Let G = G1 ∪ G2 be the sum of two simple graphs G1,G2 having a common edge or G = G1 ∪ e1 ∪ e2 ∪ G2 be the sum of two simple disjoint graphs G1,G2 connected by two edges e1 and e2 which form a cycle C4 inside G. We give a method of computing the determinant det A(G) of the adjacency matrix of G by r...
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Online Access: | https://doi.org/10.7151/dmgt.1745 |
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doaj-64f83d5d17f14fab845415f8a593ede32021-09-05T17:20:20ZengSciendoDiscussiones Mathematicae Graph Theory2083-58922014-08-0134349750710.7151/dmgt.1745dmgt.1745Two Graphs with a Common EdgeBadura Lidia0Mathematics and Computer Science Department University of Opole Oleska 48 45-052 Opole, PolandLet G = G1 ∪ G2 be the sum of two simple graphs G1,G2 having a common edge or G = G1 ∪ e1 ∪ e2 ∪ G2 be the sum of two simple disjoint graphs G1,G2 connected by two edges e1 and e2 which form a cycle C4 inside G. We give a method of computing the determinant det A(G) of the adjacency matrix of G by reducing the calculation of the determinant to certain subgraphs of G1 and G2. To show the scope and effectiveness of our method we give some exampleshttps://doi.org/10.7151/dmgt.1745graphadjacency matrixdeterminant of graphpathcycle |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Badura Lidia |
spellingShingle |
Badura Lidia Two Graphs with a Common Edge Discussiones Mathematicae Graph Theory graph adjacency matrix determinant of graph path cycle |
author_facet |
Badura Lidia |
author_sort |
Badura Lidia |
title |
Two Graphs with a Common Edge |
title_short |
Two Graphs with a Common Edge |
title_full |
Two Graphs with a Common Edge |
title_fullStr |
Two Graphs with a Common Edge |
title_full_unstemmed |
Two Graphs with a Common Edge |
title_sort |
two graphs with a common edge |
publisher |
Sciendo |
series |
Discussiones Mathematicae Graph Theory |
issn |
2083-5892 |
publishDate |
2014-08-01 |
description |
Let G = G1 ∪ G2 be the sum of two simple graphs G1,G2 having a common edge or G = G1 ∪ e1 ∪ e2 ∪ G2 be the sum of two simple disjoint graphs G1,G2 connected by two edges e1 and e2 which form a cycle C4 inside G. We give a method of computing the determinant det A(G) of the adjacency matrix of G by reducing the calculation of the determinant to certain subgraphs of G1 and G2. To show the scope and effectiveness of our method we give some examples |
topic |
graph adjacency matrix determinant of graph path cycle |
url |
https://doi.org/10.7151/dmgt.1745 |
work_keys_str_mv |
AT baduralidia twographswithacommonedge |
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1717786511446900736 |