A compactiรฟcation of the set of conditioned invariant subspaces of รฟxed dimension for an observable pair (C; A) is proposed. It contains the almost conditioned invariant subspaces of the same dimension. In certain cases the compactiรฟcation is shown to be smooth and a complete geometric description i
The topology of the set of conditioned invariant subspaces
โ Scribed by X. Puerta; U. Helmke
- Publisher
- Elsevier Science
- Year
- 2000
- Tongue
- English
- Weight
- 103 KB
- Volume
- 40
- Category
- Article
- ISSN
- 0167-6911
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โฆ Synopsis
We consider the topology of the set of conditioned invariant subspaces of an observable pair (C; A) of a รฟxed dimension. By รฟxing the observability indices of the restricted system, a stratiรฟcation by รฟnitely many smooth manifolds is obtained, termed Brunovsky strata. It is shown that each Brunovsky stratum is homotopy equivalent to a generalized ag manifold. From this description an e ective formula for the Betti numbers of the Brunovsky strata can be derived.
๐ SIMILAR VOLUMES
A subspace \(M \subset L\_{u}^{2}(\Delta)=A\_{2}\) is called an e-subspace if (i) \(\operatorname{dim} M0\) and \(N \geqslant 0\) are integers. For \(k=1\) this implies a sharper form of a theorem of H. Hedenmalm. I 199.3 Academic Press, Inc.