预投射代数是一类非常重要的代数.本文引入了由有限无圈的箭图Δ所决定的偏周期预投射代数的概念,并重点讨论了星形箭图的偏周期预投射代数的运算公式.
Preprojective Algebra is a very important algebra . This paper introduces the concept of Partial Period Preprojective Algebra defined over of a Finite Quiver Without Cycle, and mainly discusses the Operational Formula of the Period Preprojective Algebra of Star-shaped Quiver.