The spectral radius of the Coxeter transformations for a generalized Cartan matrix
نویسندگان
چکیده
منابع مشابه
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Abstract. The purpose of this note is to give explicit criteria to determine whether a real generalized Cartan matrix is of finite type, affine type or of hyperbolic type by considering the principal minors and the inverse of the matrix. In particular, it will be shown that a real generalized Cartan matrix is of finite type if and only if it is invertible and the inverse is a positive matrix. A...
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ژورنال
عنوان ژورنال: Mathematische Annalen
سال: 1994
ISSN: 0025-5831,1432-1807
DOI: 10.1007/bf01450490