【摘要】 本文研究了渺位四角系统的构成,定义了构成渺位四角系统的四角运算,并讨论在不同四角运算下渺位四角系统的完美匹配数,给出固定细胞总数下具有较少完美匹配数的渺位四角系统的排序.更多还原

【Abstract】 A catacondensed polyomino is a 2-connected subgraph of apolyomino such that no four cells have a common wertex. In this paper, we give the definition of operation between catacondensed polyominoes and consider the number of perfect matchings and the structure of catacondensed polyominoes with operations; furthermore,we give order of catacondensed polyominoes with smaller numbers of perfect matchings by their numbers of perfect matchings.更多还原