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KCI등재 학술저널

A RATIONAL HOMOLOGY DISK SMOOTHING OF Wp,q,r

A RATIONAL HOMOLOGY DISK SMOOTHING OF Wp,q,r

We prove that a rational homology disk smoothing of the singularity Wp,q,r is Q-Gorenstein by using its sandwiched structure.

1. Introduction

2. Sandwiched surface singularities

3. Q-Gorensteinness

References

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