Abstract:
Given a linear homogeneous multidimensional difference equation with constant coefficients, we choose a pair $(\gamma,\omega)$, where $\gamma$ is a homological $k$-dimensional cycle on the characteristic set of the equation and $\omega$ is a holomorphic form of degree $k$. This pair defines a so called homological solution by the integral over $\gamma$ of the form $\omega$ multiplied by an exponential kernel. A multidimensional variant of Perron's theorem in the class of homological solutions is illustrated by an example of the first order equation.
Keywords:difference equation, asymptotic, amoebas of algebraic sets, logarithmic Gauss map.
UDC:517.55
Received: 18.08.2014 Received in revised form: 25.09.2014 Accepted: 20.10.2014