Titlebook: Recent Developments in Variable Structure Systems, Economics and Biology; Proceedings of US-It R. R. Mohler,A. Ruberti Conference proceedin

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书目名称Recent Developments in Variable Structure Systems, Economics and Biology网络公开度学科排名




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书目名称Recent Developments in Variable Structure Systems, Economics and Biology被引频次学科排名




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书目名称Recent Developments in Variable Structure Systems, Economics and Biology年度引用学科排名




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https://doi.org/10.1007/978-3-642-45509-4Innovation; Systemtheorie; biology; control theory; ecology; economics; evaluation; growth; linear optimizat

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Stability Problems in 2-D Systems,A 2-D system is defined by the following set of equations [1,2]: . where u(h,k), the input value at (h,k), and y(h,k), the output value at (h,k), are in ℝ and h,k ∈ ℤ. The vector x ∈ X =ℝ. is called the local state space and A.∈ ℤ., B.∈ ℤ., C∈ ℤ., i = 1,2.

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On Mathusian Models of Migration and Population Growth,By separating the migrant community from the natural population a multi-regional migration model of the mathusian type is developed for human populations. Closed form solutions for the proposed model are obtained using a quotient or per capita argument and some remarks pertaining to the population behavior in Italy are provided.

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Minimal Realizations of Linear and Affine Time-Varying Systems,The problem of finding a minimal realization, starting from a non minimal one, is faced both for linear and affine time-varying systems. In section two the minimal state space is found and its properties are given; in section three the reduction procedure is performed and the minimality result is proved.

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Genericity and Singularities in Vector Optimization,Let C. be the set of smooth maps u from X to Y, where X and Y are open smooth manifolds of dimension n and m respectively (for our purposes we shall take Y = R.). Let Λ be an open convex cone in R. with non empty interior, . its closure, ∂Λ its boundary.

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A Topological Space of Systems and a Dense Subset,iving a procedure to assign a topology to the space of systems in question. It is then illustrated the meaning of the property for a subset of being dense in the ensuing topological space. The dense subset we exhibit in the final part of the paper is very attractive in view of the particularly strong properties of its members.

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