Abstract
In this paper, we present an algorithm for stability analysis of systems described by coupled linear Partial Differential Equations (PDEs) with constant coefficients and mixed boundary conditions. Our approach uses positive matrices to parameterize functionals which are positive or negative on certain function spaces. Applying this parameterization to construct Lyapunov functionals with negative derivative allows us to express stability conditions as a set of LMI constraints which can be constructed using SOSTOOLS and tested using standard SDP solvers such as SeDuMi. The results are tested using a simple numerical example and compared results obtained from simulation using a standard form of discretization.
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