Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/25093
Título: | General properties of staircase and convex dual feasible functions |
Autor(es): | Rietz, Jurgen Endre Alves, Cláudio Carvalho, José Valério de |
Palavras-chave: | Dual feasible functions Maximal functions Extreme functions Dominance Convex functions Lower bounds |
Data: | Jun-2011 |
Editora: | ACM |
Revista: | WSEAS Transactions on Information Science and Applications |
Resumo(s): | Dual feasible functions have been used successfully to compute lower bounds and valid inequalities for different combinatorial optimization problems. In this paper, we show that some maximal dual feasible functions proposed in the literature are dominated by others under weak prerequisites. Furthermore, we explore the relation between superadditivity and convexity, and we derive new results for the case where dual feasible functions are convex. Computational results are reported to illustrate the results presented in this paper. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/25093 |
ISSN: | 1790-0832 |
Arbitragem científica: | yes |
Acesso: | Acesso restrito UMinho |
Aparece nas coleções: | LES/ALG - Artigos em revistas científicas internacionais com arbitragem |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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General properties of staircase and convex dual feasible functions.pdf Acesso restrito! | 373,87 kB | Adobe PDF | Ver/Abrir |