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Sponsored by the Center for Science and Technology Development of the Ministry of Education
Supervised by Ministry of Education of the People's Republic of China
In this paper, we introduce $m$-Cartan matrix and observe that some properties of the quadratic form associated to the Cartan matrix of an Euclidean, such as it is positive semi-definite, can be generalized to $m$-Cartan matrix of a McKay quiver. We also describe the McKay quiver for a finite abelian
subgroup of a special linear group.
Keywords:McKay quiver;$m$-Cartan matrix;linear group;finite abelian group