Abstract
We give a necessary and sufficient condition for the stability and the freeness of the family of $A_{2}$-type arrangements. Moreover, we determine explicitly when the normalization of the sheafification of its module of reduced logarithmic vector fields is isomorphic to $T_{\mathrm{P}^{2}} (-2)$.
Citation
Takuro Abe. "The stability of the family of $A_2$-type arrangements." J. Math. Kyoto Univ. 46 (3) 617 - 635, 2006. https://doi.org/10.1215/kjm/1250281752
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