出版社:Japan Science and Technology Information Aggregator, Electronic
摘要:
A fundamental theorem in discrete convex analysis states that a set function is M♮-concave if and only if its conjugate function is submodular. This paper gives an alternative direct proof to this fact.
关键词:Combinatorial optimization;discrete convex analysis;M♮-concave function;valuated matroid;submodularity;conjugate function