On d-antimagic labelings of prisms
- Authors: Lin, Yuqing , Slamin, , Baca, Martin , Miller, Mirka
- Date: 2004
- Type: Text , Journal article
- Relation: Ars Combinatoria: A Canadian Journal of Combinatorics Vol. 72, no. (2004), p. 65-76
- Full Text: false
- Reviewed:
- Description: C1
- Description: 2003000907
On non-polynomiality of XOR over Zn2
- Authors: Grosek, Otokar , Miller, Mirka , Ryan, Joe
- Date: 2004
- Type: Text , Journal article
- Relation: Tatra Mountains Mathematical Publications Vol. 29, no. (2004), p. 183-191
- Full Text: false
- Reviewed:
- Description: C1
- Description: 2003000905
(a,d)-edge-antimagic total labelings of caterpillars
- Authors: Miller, Mirka , Sugeng, Kiki Ariyanti , Slamin, , Baca, Martin
- Date: 2005
- Type: Text , Journal article
- Relation: Combinatorial Geometry and Graph Theory, LNCS 3330, Lecture Notes in Computer Science, Indonesia-Japan Joint Conference IJCCGGT 2003, Bandung, Indonesia, September 2003, Revised Selected Papers Vol. 3330, no. (2005), p. 169-180
- Full Text: false
- Reviewed:
- Description: For a graph G = (V,E), a bijection g from V (G)∪E(G) into {1, 2, ..., |V (G)|+|E(G)|} is called (a, d)-edge-antimagic total labeling of G if the edge-weights w(xy) = g(x) + g(y) + g(xy), xy ∈ E(G), form an arithmetic progression with initial term a and common difference d. An (a, d)-edge-antimagic total labeling g is called super (a, d)-edge-antimagic total if g(V (G)) = {1, 2, ..., |V (G)|}. We study super (a, d)-edge-antimagic total properties of stars Sn and caterpillar Sn1,n2,...,nr .
- Description: C1
- Description: 2003001412
All (k;g)-cages are k-edge-connected
- Authors: Lin, Yuqing , Miller, Mirka , Rodger, Chris
- Date: 2005
- Type: Text , Journal article
- Relation: Journal of Graph Theory Vol. 48, no. 3 (2005), p. 219-227
- Full Text: false
- Reviewed:
- Description: A (k;g)-cage is a k-regular graph with girth g and with the least possible number of vertices. In this paper, we prove that (k;g)-cages are k-edge-connected if g is even. Earlier, Wang, Xu, and Wang proved that (k;g)-cages are k-edge-connected if g is odd. Combining our results, we conclude that the (k;g)-cages are k-edge-connected. © 2005 wiley Periodicals, Inc.
- Description: C1
Antimagic valuations for the special class of plane graphs
- Authors: Baca, Martin , Baskoro, Edy , Miller, Mirka
- Date: 2005
- Type: Text , Journal article
- Relation: Lecture Notes in Computer Science Vol. 3350, no. (2005), p. 58-64
- Full Text: false
- Reviewed:
- Description: We deal with the problem of labeling the vertices, edges and faces of a special class of plane graphs with 3-sided internal faces in such a way that the label of a face and the labels of the vertices and edges surrounding that face all together add up to the weight of that face. These face weights then form an arithmetic progression with common difference d.
- Description: C1
- Description: 2003001410
Complete characterization of almost moore digraphs of degree three
- Authors: Baskoro, Edy , Miller, Mirka , Siran, Jozef , Sutton, Martin
- Date: 2005
- Type: Text , Journal article
- Relation: Journal of Graph Theory Vol. 48, no. 2 (2005), p. 112-126
- Full Text: false
- Reviewed:
- Description: It is well known that Moore digraphs do not exist except for trivial cases (degree 1 or diameter 1), but there are digraphs of diameter two and arbitrary degree which miss the Moore bound by one. No examples of such digraphs of diameter at least three are known, although several necessary conditions for their existence have been obtained. In this paper, we prove that digraphs of degree three and diameter k ≥ 3 which miss the Moore bound by one do not exist. © 2004 Wiley Periodicals, Inc.
- Description: C1
- Description: 2003000904
Conjectures and open problems on face antimagic evaluations of graphs
- Authors: Miller, Mirka , Baca, Martin , Baskoro, Edy , Cholily, Yus Mochamad , Jendrol, Stanislav , Lin, Yuqing , Ryan, Joe , Simanjuntak, Rinovia , Slamin, , Sugeng, Kiki Ariyanti
- Date: 2005
- Type: Text , Journal article
- Relation: Journal of Indonesian Mathematical Society MIHMI Vol. 11, no. 2 (2005), p. 175-192
- Full Text: false
- Reviewed:
- Description: C1
- Description: 2003001408
Delta-optimum exclusive sum labeling of certain graphs with radius one
- Authors: Tuga, Mauritsius , Miller, Mirka
- Date: 2005
- Type: Text , Journal article
- Relation: Lecture Notes in Computer Science Vol. 3330, no. (2005), p. 216-225
- Full Text: false
- Reviewed:
- Description: A mapping
- Description: C1
- Description: 2003001413
Exclusive sum labeling of graphs
- Authors: Miller, Mirka , Patel, Deval , Ryan, Joe , Sugeng, Kiki Ariyanti , Slamin, , Tuga, Mauritsius
- Date: 2005
- Type: Text , Journal article
- Relation: The Journal of Combinatorial Mathematics and Combinatorial Computing Vol. 55, no. (2005), p. 137-148
- Full Text: false
- Reviewed:
- Description: C1
- Description: 2003001402
Exclusive sum labelings of trees
- Authors: Miller, Mirka , Tuga, Mauritsius , Ryan, Joe , Ryjacek, Zdenek
- Date: 2005
- Type: Text , Journal article
- Relation: The Journal of Combinatorial Mathematics and Combinatorial Computing Vol. 55, no. (2005), p. 109-121
- Full Text: false
- Reviewed:
- Description: The notions of
- Description: C1
- Description: 2003001406
Improved lower bound for the vertex connectivity of (delta;g)-cages
- Authors: Lin, Yuqing , Miller, Mirka , Balbuena, Camino
- Date: 2005
- Type: Text , Journal article
- Relation: Discrete Mathematics Vol. 299, no. 1-3 (Aug 2005), p. 162-171
- Full Text: false
- Reviewed:
- Description: A (delta, g)-cage is a delta-regular graph with girth g and with the least possible number of vertices. We prove that all (delta, g)-cages are r-connected with r >= root(delta + 1) for g >= 7 odd. This result supports the conjecture of Fu, Huang and Rodger that all (delta; g)-cages are delta-connected. (c) 2005 Elsevier B.V. All rights reserved.
- Description: C1
- Description: 2003001397
Languages recognized by two-sided automata of graphs
- Authors: Miller, Mirka , Kelarev, Andrei , Sokratova, Olga
- Date: 2005
- Type: Text , Journal article
- Relation: Proceedings of the Estonian Academy of Sciences, Physics Mathematic Vol. 51, no. 1 (2005), p. 46-54
- Full Text: false
- Reviewed:
- Description: We introduce two-sided automata defined by directed graphs and describe all languages recognized by these automata.
- Description: C1
- Description: 2003001399
Moore graphs and beyond : A survey of the degree/diameter problem
- Authors: Miller, Mirka , Siran, Jozef
- Date: 2005
- Type: Text , Journal article
- Relation: Electronic Journal of Combinatorics Vol. DS14, no. (2005), p. 1-61
- Full Text: false
- Reviewed:
- Description: The degree/diameter problem is to determine the largest graphs or digraphs of given maximum degree and given diameter. General upper bounds { called Moore bounds { for the order of such graphs and digraphs are attainable only for certain special graphs and digraphs. Finding better (tighter) upper bounds for the maximum possible number of vertices, given the other two parameters, and thus attacking the degree/diameter problem `from above', remains a largely unexplored area. Constructions producing large graphs and digraphs of given degree and diameter represent a way of attacking the degree/diameter problem `from below'. This survey aims to give an overview of the current state-of-the-art of the degree/diameter problem. We focus mainly on the above two streams of research. However, we could not resist mentioning also results on various related problems. These include considering Moore-like bounds for special types of graphs and digraphs, such as vertex-transitive, Cayley, planar, bipartite, and many others, on the one hand, and related properties such as connectivity, regularity, and surface embeddability, on the other hand.
- Description: C1
- Description: 2003001407
Parallel algorithms for generalized clique transversal problems
- Authors: Miller, Mirka , Dahlhaus, Elias , Manuel, Paul
- Date: 2005
- Type: Text , Journal article
- Relation: Australasian Journal of Combinatorics Vol. 33, no. (2005), p. 3-14
- Full Text: false
- Reviewed:
- Description: The K ` - clique transversal problem is to locate a minimum collection of cliques of size ` in a graph G such that every maximal clique of size ` in G contains at least one member of the collection. We give an NC algorithm to solve this problem on strongly chordal graphs. Keywords: balanced graphs, strongly chordal graphs, clique transversal, k-fold clique transversal, K ` - clique transversal. 1 Introduction A 0 Gamma 1 matrix is balanced if it does not contain as a submatrix, an edge - vertex incidence matrix of an odd cycle. A 0 Gamma 1 matrix is totally balanced if it does not contain as a submatrix, an edge - vertex incidence matrix of any cycle. A hypergraph H is an ordered pair (V; E) where V is a set of vertices and E is a family of subsets of V . The members of E are called hyperedges of H . Let V = fv 1 ; v 2 ; : : : ; v n g and E = fE 1 ; E 2 ; : : : ; Em g. Let A(H) denote the hyperedge - vertex incidence matrix of a hypergraph H .
- Description: C1
- Description: 2003001400
Relationship between adjacency matrices and super (a,d)-edge-antimagic total labeling of graphs
- Authors: Miller, Mirka , Sugeng, Kiki Ariyanti
- Date: 2005
- Type: Text , Journal article
- Relation: The Journal of Combinatorial Mathematics and Combinatorial Computing Vol. 55, no. (2005), p. 71-82
- Full Text: false
- Reviewed:
- Description: C1
- Description: 2003001403
Super (a,d)-vertex-antimagic total labelings
- Authors: Miller, Mirka , Sugeng, Kiki Ariyanti , Lin, Yuqing , Baca, Martin
- Date: 2005
- Type: Text , Journal article
- Relation: The Journal of Combinatorial Mathematics and Combinatorial Computing Vol. 55, no. (2005), p. 91-102
- Full Text: false
- Reviewed:
- Description: C1
- Description: 2003001401
All (k;g)-cages are edge-superconnected
- Authors: Lin, Yuqing , Miller, Mirka , Balbuena, Camino , Marcote, Xavier
- Date: 2006
- Type: Text , Journal article
- Relation: Networks Vol. 47, no. 2 (2006), p. 102-110
- Full Text: false
- Reviewed:
- Description: A (k;g)-cage is k-regular graph with girth g and with the least possible number of vertices. In this article we prove that (k;g)-cages are edge-superconnected if g is even. Earlier, Marcote and Balbuena proved that (k;g)-cages are edge-superconnected if g is odd [Networks 43 (2004), 54-59]. Combining our results, we conclude that all (k;g)-cages are edge-superconnected. © 2005 Wiley Periodicals, Inc.
- Description: C1
- Description: 2003001830
Calculating the extremal number ex (v ; {C3, C4, ..., Cn})
- Authors: Tang, Jianmin , Lin, Yuqing , Miller, Mirka
- Date: 2006
- Type: Text , Journal article
- Relation: Electronic Notes in Discrete Mathematics Vol. 27, no. (2006), p. 101-102
- Full Text: false
- Reviewed:
- Description: This paper introduces and analyzes a parallel method of simulated annealing. Borrowing from genetic algorithms, an effective combination of simulated annealing and genetic algorithms, called parallel recombinative simulated annealing, is developed. This new algorithm strives to retain the desirable asymptotic convergence properties of simulated annealing, while adding the populations approach and recombinative power of genetic algorithms. The algorithm iterates a population of solutions rather than a single solution, employing a binary recombination operator as well as a unary neighborhood operator. Proofs of global convergence are given for two variations of the algorithm. Convergence behavior is examined, and empirical distributions are compared to Boltzmann distributions. Parallel recombinative simulated annealing is amenable to straightforward implementation on SIMD, MIMD, or shared-memory machines. The algorithm, implemented on the CM-5, is run repeatedly on two deceptive problems to demonstrate the added implicit parallelism and faster convergence which can result from larger population sizes.
- Description: C1
Characterization of eccentric digraphs
- Authors: Gimbert, Joan , Lopez, Nacho , Miller, Mirka , Ryan, Joe
- Date: 2006
- Type: Text , Journal article
- Relation: Discrete Mathematics Vol. 306, no. 2 (2006), p. 210-219
- Full Text: false
- Reviewed:
- Description: The eccentric digraph ED(G) of a digraph G represents the binary relation, defined on the vertex set of G, of being 'eccentric'; that is, there is an arc from u to v in ED(G) if and only if v is at maximum distance from u in G. A digraph G is said to be eccentric if there exists a digraph H such that G=ED(H). This paper is devoted to the study of the following two questions: what digraphs are eccentric and when the relation of being eccentric is symmetric. We present a characterization of eccentric digraphs, which in the undirected case says that a graph G is eccentric iff its complement graph G is either self-centered of radius two or it is the union of complete graphs. As a consequence, we obtain that all trees except those with diameter 3 are eccentric digraphs. We also determine when ED(G) is symmetric in the cases when G is a graph or a digraph that is not strongly connected. Crown Copyright © 2006 Published by Elsevier B.V. All rights reserved.
- Description: C1
- Description: 2003001601
Consecutive magic graphs
- Authors: Balbuena, Camino , Barker, Ewan , Lin, Yuqing , Miller, Mirka , Sugeng, Kiki Ariyanti
- Date: 2006
- Type: Text , Journal article
- Relation: Discrete Mathematics Vol. 306, no. 16 (2006), p. 1817-1829
- Full Text: false
- Reviewed:
- Description: Let G be a graph of order n and size e. A vertex-magic total labeling is an assignment of the integers 1, 2, ..., n + e to the vertices and the edges of G, so that at each vertex, the vertex label and the labels on the edges incident at that vertex, add to a fixed constant, called the magic number of G. Such a labeling is a-vertex consecutive magic if the set of the labels of the vertices is { a + 1, a + 2, ..., a + n }, and is b-edge consecutive magic if the set of labels of the edges is { b + 1, b + 2, ..., b + e }. In this paper we prove that if an a-vertex consecutive magic graph has isolated vertices then the order and the size satisfy (n - 1)
- Description: C1
- Description: 2003001604