Characterization of magic graphs
Samuel Jezný, Marián Trenkler (1983)
Czechoslovak Mathematical Journal
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Samuel Jezný, Marián Trenkler (1983)
Czechoslovak Mathematical Journal
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Cariolaro, David, Fu, Hung-Lin (2009)
The Electronic Journal of Combinatorics [electronic only]
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David Burns, S. Kapoor, P. Ostrand (1985)
Fundamenta Mathematicae
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A.P. Santhakumaran, S. Athisayanathan (2010)
Discussiones Mathematicae Graph Theory
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For two vertices u and v in a graph G = (V,E), the detour distance D(u,v) is the length of a longest u-v path in G. A u-v path of length D(u,v) is called a u-v detour. A set S ⊆V is called an edge detour set if every edge in G lies on a detour joining a pair of vertices of S. The edge detour number dn₁(G) of G is the minimum order of its edge detour sets and any edge detour set of order dn₁(G) is an edge detour basis of G. A connected graph G is called an edge detour graph if it has...
Dean, Alice M., Evans, William, Gethner, Ellen, Laison, Joshua D., Safari, Mohammad Ali, Trotter, William T. (2007)
Journal of Graph Algorithms and Applications
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Muhammad Javaid (2014)
Discussiones Mathematicae Graph Theory
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In 1980, Enomoto et al. proposed the conjecture that every tree is a super (a, 0)-edge-antimagic total graph. In this paper, we give a partial sup- port for the correctness of this conjecture by formulating some super (a, d)- edge-antimagic total labelings on a subclass of subdivided stars denoted by T(n, n + 1, 2n + 1, 4n + 2, n5, n6, . . . , nr) for different values of the edge- antimagic labeling parameter d, where n ≥ 3 is odd, nm = 2m−4(4n+1)+1, r ≥ 5 and 5 ≤ m ≤ r.
Sana Javed, Mujtaba Hussain, Ayesha Riasat, Salma Kanwal, Mariam Imtiaz, M. O. Ahmad (2017)
Open Mathematics
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An edge-magic total labeling of an (n,m)-graph G = (V,E) is a one to one map λ from V(G) ∪ E(G) onto the integers {1,2,…,n + m} with the property that there exists an integer constant c such that λ(x) + λ(y) + λ(xy) = c for any xy ∈ E(G). It is called super edge-magic total labeling if λ (V(G)) = {1,2,…,n}. Furthermore, if G has no super edge-magic total labeling, then the minimum number of vertices added to G to have a super edge-magic total labeling, called super edge-magic deficiency...
Leila Asgharsharghi, Seyed Mahmoud Sheikholeslami, Lutz Volkmann (2017)
Discussiones Mathematicae Graph Theory
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Let k ≥ 1 be an integer, and G = (V, E) be a finite and simple graph. The closed neighborhood NG[e] of an edge e in a graph G is the set consisting of e and all edges having a common end-vertex with e. A signed Roman edge k-dominating function (SREkDF) on a graph G is a function f : E → {−1, 1, 2} satisfying the conditions that (i) for every edge e of G, ∑x∈NG[e] f(x) ≥ k and (ii) every edge e for which f(e) = −1 is adjacent to at least one edge e′ for which f(e′) = 2. The minimum of...
Sousa, Teresa (2010)
The Electronic Journal of Combinatorics [electronic only]
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Bohdan Zelinka (1987)
Czechoslovak Mathematical Journal
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