On two-dimensional normal singularities of type ${}_\ast A_{n}$, ${}_\ast D_{n}$ and ${}_\ast E_{n}$
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- by Shigeki Ohyanagi PDF
- Trans. Amer. Math. Soc. 266 (1981), 57-69 Request permission
Abstract:
Let $G$ be the weighted dual graph associated with a contractible curve $A = \cup {A_i}$. There are many combinations of the weights ${A_i} \cdot {A_i}$ which make the graph contractible. If $G$ is a graph which is the weighted dual graph for a rational singularity with any combination of the weights, then $G$ is either ${}_ \ast {A_n}$, ${}_ \ast {D_n}$ or $_\ast {E_n}$.References
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Additional Information
- © Copyright 1981 American Mathematical Society
- Journal: Trans. Amer. Math. Soc. 266 (1981), 57-69
- MSC: Primary 32C45; Secondary 14J17
- DOI: https://doi.org/10.1090/S0002-9947-1981-0613785-9
- MathSciNet review: 613785