Vanishing products of one-forms and critical points of master functions

Daniel C. Cohen, Graham Denham, Michael Falk +1

Let \A be an affine hyperplane arrangement in $\C^\ell$ with complement $U$. Let $f_1,\dot{.}.,f_n$ be linear polynomials defining the hyperplanes of \A, and $A^{\cdot }$ the algebra of…