標題: | The minimum number of e-vertex-covers among hypergraphs with e edges of given ranks |
作者: | Chang, F. H. Fu, H. L. Hwang, F. K. Lin, B. C. 應用數學系 Department of Applied Mathematics |
關鍵字: | Vertex-cover;Hypergraph;Pooling design |
公開日期: | 6-一月-2009 |
摘要: | We study the problem that among all hypergraphs with e edges of ranks l(1), ..., l(e) an v vertices, which hypergraph has the least number of vertex-covers of size e. The problem is very difficult and we only get some partial answers. We show an application of our results to improve the error-tolerance of a pooling design proposed in the literature. (c) 2008 Elsevier B.V. All rights reserved. |
URI: | http://dx.doi.org/10.1016/j.dam.2008.05.006 http://hdl.handle.net/11536/7757 |
ISSN: | 0166-218X |
DOI: | 10.1016/j.dam.2008.05.006 |
期刊: | DISCRETE APPLIED MATHEMATICS |
Volume: | 157 |
Issue: | 1 |
起始頁: | 164 |
結束頁: | 169 |
顯示於類別: | 期刊論文 |