SIFAT-SIFAT REPRESENTASI QUIVER SEDERHANA
(1) Program Studi Matematika, FMIPA, Universitas Sebelas Maret, Indonesia
Abstract
Graf berarah dapat dipandang sebagai pasangan 4-tupel yang terdiri dari dua himpunan serta dua pemetaan dan disebut sebagai quiver . Untuk suatu quiver dapat didefinisikan representasi quiver . Representasi quiver merupakan penempatan ruang vektor pada setiap titik-titik dari quiver dan pemetaan linier pada setiap panah-panahnya. Sebuah representasi yang tidak memiliki subrepresentasi sejati selain nol disebut sebagai representasi sederhana. Pada makalah ini, dipelajari sifat-sifat dari suatu representasi quiver sederahana. Selanjutnya sifat-sifat tersebut digunakan untuk menyelidiki syarat perlu dan cukup dari suatu representasi sederhana.
A directed graph can be viewed as a 4-tuple where are finite sets of vertices and arrows respectively, and are two maps from to . A directed graph is often called a quiver. For a quiver , we can define a quiver representation . A representation of a quiver is an assignment of a vector space to each vertex and a linear mapping to each arrow. A representation which has no proper subrepresentation except zero is called a simple representation. In this paper, we study the properties of a simple representation of quiver. These properties will be used to investigate the necessary and sufficient condition of a simple representation of quiver.
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