5 citations · 10 across the 5 of their papers we have counts for
5 papers
A Zariski theorem for monodromy of -hypergeometric systems
Jens Forsgård, Laura Felicia Matusevich
We give conditions under which the monodromy group of an -hypergeometric system is invariant under modifications of the collection of characters . The key ingredient is a Zar…
The Lattice of Amoebas
Jens Forsgård, Timo de Wolff
We study amoebas of exponential sums as functions of the support set . To any amoeba, we associate a set of approximating sections of amoebas, which we call caissons. We show th…
A tropical analog of Descartes' rule of signs
J. Forsgård, D. Novikov, B. Shapiro
We prove that for any degree d, there exist (families of) finite sequences a_0, a_1,..., a_d of positive numbers such that, for any real polynomial P of degree d, the number of its…
Hypergeometric Functions for Projective Toric Curves
Christine Berkesch Zamaere, Jens Forsgård, Laura Felicia Matusevich
We produce a decomposition of the parameter space of the -hypergeometric system associated to a projective monomial curve as a union of an arrangement of lines and its complemen…
Euler--Mellin integrals and A-hypergeometric functions
Christine Berkesch, Jens Forsgård, Mikael Passare
We consider integrals that generalize both the Mellin transforms of rational functions of the form 1/f and the classical Euler integrals. The domains of integration of our so-calle…