一类无圈型Nakayama代数的量

Magnitudes of a class of Nakayama algebras with acyclic quivers

用同调方法求出一类Nakayama代数A的量,并且求得其代数A的量|IP(A)|=■n-1/r■+1,其中■·■表示向下取整函数.

Using homomorphic method to calculate the magnitudes of Nakayama algebras, and the magnitudes of the algebra of A is proved to be ｜IP（A）｜= n-1/r ＋1, where · represents round down function.