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This paper studies behaviors that are defined on a torus, or equivalently, behaviors defined in spaces of periodic functions, and establishes their basic properties analogous to classical results of Malgrange, Palamodov, Oberst et al. for behaviors on R^n. These properties - in particular the Nullstellensatz describing the Willems closure - are closely related to integral and rational points on affine algebraic varieties.
13 pages
STABILIZATION, periodic behaviors, Mathematics - Commutative Algebra, Commutative Algebra (math.AC), SYSTEMS, Optimization and Control (math.OC), 93C05, 93C35, 93B25, 93C20, 35B10, 35E20, FOS: Mathematics, Mathematics - Optimization and Control, Willems' closure, behaviors on torii, injective hull
STABILIZATION, periodic behaviors, Mathematics - Commutative Algebra, Commutative Algebra (math.AC), SYSTEMS, Optimization and Control (math.OC), 93C05, 93C35, 93B25, 93C20, 35B10, 35E20, FOS: Mathematics, Mathematics - Optimization and Control, Willems' closure, behaviors on torii, injective hull
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