Skip to Main Content
The geometry of stable discrete polynomials using their coefficients and reflection coefficients is investigated. Two linear Schur invariant transformations with a free parameter in the polynomial coefficient space are introduced. The first transformation Rfrn times RfrrarrRfrn maps an arbitrary stable polytope into another stable polytope. The second transformation Rfrn times RfrrarrRfrn maps a stable tilted n-dimensional hyperrectangle defined by the discrete Kharitonov theorem into a stable (n+1)- dimensional polytope.