eng
Schloss Dagstuhl – Leibniz-Zentrum für Informatik
Dagstuhl Seminar Proceedings
1862-4405
2006-09-13
1
18
10.4230/DagSemProc.06021.10
article
Upper and Lower Bounds on Sizes of Finite Bisimulations of Pfaffian Dynamical Systems
Korovina, Margarita
Vorobjov, Nicolai
In this paper we study a class of dynamical systems defined by Pfaffian maps. It is a sub-class of o-minimal dynamical systems which capture rich
continuous dynamics and yet can be studied using finite bisimulations.
The existence of finite bisimulations for o-minimal dynamical and hybrid systems has been shown by several authors; see e.g. Brihaye et al (2004), Davoren (1999), Lafferriere et al (2000).
The next natural question to investigate is how the sizes of such bisimulations can be bounded. The first step in this direction was done by Korovina et al (2004) where a double exponential upper bound was shown for Pfaffian dynamical and hybrid systems. In the present paper we improve this bound to a single exponential upper bound. Moreover we show that this bound is tight in general, by exhibiting a parameterized class of systems on which the exponential bound is attained.
The bounds provide a basis for designing efficient algorithms for computing
bisimulations, solving reachability and motion planning problems.
https://drops.dagstuhl.de/storage/16dagstuhl-seminar-proceedings/dsp-vol06021/DagSemProc.06021.10/DagSemProc.06021.10.pdf
Hybrid systems
Pfaffian functions
bisimulation