Modular Ideals and Factorizations of Affine Hyperplane Arrangements

Yanru Chen, Weikang Liang, Suijie Wang +1

Let $\mathcal{A}$ be an affine hyperplane arrangement, let $L(\mathcal{A})$ be its intersection semilattice, and let ${\chi }_{\mathcal{A}}(t)$ be its characteristic polynomial. We intro…