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JOURNALS // Journal of Siberian Federal University. Mathematics & Physics // Archive

J. Sib. Fed. Univ. Math. Phys., 2014 Volume 7, Issue 4, Pages 417–430 (Mi jsfu388)

This article is cited in 2 papers

On the asymptotic of homological solutions to linear multidimensional difference equations

Natalia A. Bushuevaa, Konstantin V. Kuzvesovb, Avgust K. Tsikha

a Institute of Mathematics and Computer Science, Siberian Federal University, Svobodny, 79, Krasnoyarsk, 660041, Russia
b Multifunctional Center, 9 May, 12, Krasnoyarsk, 660125, Russia

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

Language: English



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