【摘要】 本文把组合最优化理论中子集族的多重独立代表系和部份独立代表系等重要概念引入广义拟阵并分别给出它们存在的充分性条件更多还原

【Abstract】 In this paper the notation of system of poly-independent representatives and independent partial representatives was introduced in greedoids and sufficient conditions of their existence was given.更多还原