Search Results - "Wormald, N C"
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Maximum induced matchings of random cubic graphs
Published in Journal of computational and applied mathematics (01-05-2002)“…We present a heuristic for finding a large induced matching of cubic graphs. We analyse the performance of this heuristic, which is a random greedy algorithm,…”
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Bounds on the max and min bisection of random cubic and random 4-regular graphs
Published in Theoretical computer science (14-10-2003)“…In this paper, we present a randomized algorithm to compute the bisection width of cubic and 4-regular graphs. The analysis of the proposed algorithms on…”
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Distribution of subgraphs of random regular graphs
Published in Random structures & algorithms (01-01-2008)“…We obtain the asymptotic distribution of the number of copies of a fixed subgraph H in a random d‐regular graph, provided H is strictly balanced and d = d(n)…”
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Bounds on the bisection width for random d -regular graphs
Published in Theoretical computer science (31-08-2007)“…In this paper we provide an explicit way to compute asymptotically almost sure upper bounds on the bisection width of random d -regular graphs, for any value…”
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Gradient-constrained minimum networks. I. Fundamentals
Published in Journal of global optimization (01-10-2001)“…In three-dimensional space an embedded network is called gradient-constrained if the absolute gradient of any differentiable point on the edges in the network…”
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A polynomial algorithm for a constrained traveling salesman problem
Published in Networks (01-09-2001)“…We give a polynomial‐time algorithm for finding a solution to the Traveling Salesman Problem when the points given are constrained to lie on a fixed set of…”
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Minimum independent dominating sets of random cubic graphs
Published in Random structures & algorithms (01-09-2002)“…We present a heuristic for finding a small independent dominating set 𝒟 of cubic graphs. We analyze the performance of this heuristic, which is a random…”
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Random Trees in Random Graphs
Published in Proceedings of the American Mathematical Society (1988)“…We show that a random labeled $n$-vertex graph almost surely contains isomorphic copies of almost all labeled $n$-vertex trees, in two senses. In the first…”
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Linear Arboricity and Linear k-Arboricity of Regular Graphs
Published in Graphs and combinatorics (01-01-2001)Get full text
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Isomorphic Factorization of Regular Graphs and 3-Regular Multigraphs
Published in Journal of the London Mathematical Society (01-02-1988)“…A multigraph G is divisible by t if its edge set can be partitioned into t subsets, such that the subgraphs (called factors) induced by the subsets are all…”
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Random Graph Processes with Maximum Degree 2
Published in The Annals of applied probability (01-02-1997)“…Suppose that a process begins with n isolated vertices, to which edges are added randomly one by one so that the maximum degree of the induced graph is always…”
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Connectedness of graphs generated by a random d-process
Published in Journal of the Australian Mathematical Society (2001) (01-02-2002)“…Suppose that a graph process begins with n isolated vertices, to which edges are added randomly one by one so that the maximum degree of the induced graph is…”
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Hamilton cycles containing randomly selected edges in random regular graphs
Published in Random structures & algorithms (01-09-2001)“…In previous papers the authors showed that almost all d‐regular graphs for d≤3 are hamiltonian. In the present paper this result is generalized so that a set…”
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Asymptotic enumeration by degree sequence of graphs with degrees o(n1/2)
Published in Combinatorica (Budapest. 1981) (01-12-1991)Get full text
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Extremal clique coverings of complementary graphs
Published in Combinatorica (Budapest. 1981) (01-12-1986)Get full text
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Almost All Maps Are Asymmetric
Published in Journal of combinatorial theory. Series B (1995)“…We give a simple proof of the fact that for a wide variety of classes of maps on surfaces, almost all maps in the class are asymmetric. Our method is based on…”
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The difficulty of constructing a leaf-labelled tree including or avoiding given subtrees
Published in Discrete Applied Mathematics (15-01-2000)“…Given a set of trees with leaves labelled from a set L, is there a tree T with leaves labelled by L such that each of the given trees is homeomorphic to a…”
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1-Factorizations of random regular graphs
Published in Random structures & algorithms (01-05-1997)“…It is shown that for each r ≥ 3, a random r‐regular graph on 2n vertices is equivalent in a certain sense to a set of r randomly chosen disjoint perfect…”
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A family of perfect hashing methods
Published in Computer journal (01-01-1996)“…Minimal perfect hash functions are used for memory efficient storage and fast retrieval of items from static sets. We present an infinite family of efficient…”
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