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Search: MSC category 32S22 ( Relations with arrangements of hyperplanes [See also 52C35] )

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1. CMB 2010 (vol 54 pp. 56)

Dinh, Thi Anh Thu
 Characteristic Varieties for a Class of Line Arrangements Let $\mathcal{A}$ be a line arrangement in the complex projective plane $\mathbb{P}^2$, having the points of multiplicity $\geq 3$ situated on two lines in $\mathcal{A}$, say $H_0$ and $H_{\infty}$. Then we show that the non-local irreducible components of the first resonance variety $\mathcal{R}_1(\mathcal{A})$ are 2-dimensional and correspond to parallelograms $\mathcal{P}$ in $\mathbb{C}^2=\mathbb{P}^2 \setminus H_{\infty}$ whose sides are in $\mathcal{A}$ and for which $H_0$ is a diagonal. Keywords:local system, line arrangement, characteristic variety, resonance varietyCategories:14C21, 14F99, 32S22, 14E05, 14H50

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