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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Main Author: Badura Lidia
Format: Article
Language:English
Published: Sciendo 2014-08-01
Series:Discussiones Mathematicae Graph Theory
Subjects:
Online Access:https://doi.org/10.7151/dmgt.1745
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spelling 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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