15254 search results - page 312 / 3051 » A k |
150
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JCB
2008
15 years 6 months ago
2008
In this paper, we study k-noncrossing, -canonical RNA pseudoknot structures with minimum arc-length greater or equal to four. Let T OE4 k; .n/ denote the number of these structure...
240
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APPROX
2000
Springer
15 years 11 months ago
2000
Springer
Given a graph (directed or undirected) with costs on the edges, and an integer k, we consider the problem of nding a k-node connected spanning subgraph of minimum cost. For the ge...
180
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JCT
2007
15 years 6 months ago
2007
We conjecture that every planar graph of odd-girth 2k + 1 admits a homomorphism to Cayley graph C(Z2k+1 2 , S2k+1), with S2k+1 being the set of (2k + 1)vectors with exactly two co...
163
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STACS
2010
Springer
16 years 1 months ago
2010
Springer
Given a k-uniform hypergraph on n vertices, partitioned in k equal parts such that every hyperedge includes one vertex from each part, the k-Dimensional Matching problem asks wheth...
159
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FCT
2009
Springer
16 years 1 months ago
2009
Springer
In social network theory, a simple graph G is called k-role assignable if there is a surjective mapping that assigns a number from {1, . . . , k} called a role to each vertex of G ...