Dynkin Graphs and Triangle Singularities
نویسندگان
چکیده
In Arnold’s classification list of singularities (Arnold [1].) we find interesting singularities to be studied. Though we find singularities of any dimension in Arnold’s list, we consider singularities of dimension two in particular. Among them there is a class called exceptional singularities or triangle singularities. This class consists of fourteen singularities. It is known that they are closely related to K3 surfaces with the structure of elliptic surfaces. (Looijenga [4].) Here we would like to consider the following nine singularities of these fourteen ones:
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