Zobrazeno 1 - 10
of 83
pro vyhledávání: '"Zwart, Heiko J."'
Publikováno v:
2nd IFAC Workshop on Control of Systems Governed by Partial Differential Equations, CPDE 2016, 304-308
STARTPAGE=304;ENDPAGE=308;TITLE=2nd IFAC Workshop on Control of Systems Governed by Partial Differential Equations, CPDE 2016
STARTPAGE=304;ENDPAGE=308;TITLE=2nd IFAC Workshop on Control of Systems Governed by Partial Differential Equations, CPDE 2016
The asymptotic stability of boundary controlled port-Hamiltonian systems defined on a 1D spatial domain interconnected to a class of non-linear boundary damping is addressed. It is shown that if the port-Hamiltonian system is approximately observable
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=narcis______::ccaf95cc370488198e686298a2c4673d
https://research.utwente.nl/en/publications/c6ad6e45-b031-4397-b37a-aebce5016e06
https://research.utwente.nl/en/publications/c6ad6e45-b031-4397-b37a-aebce5016e06
Publikováno v:
Proceedings of the 21st International Symposium on Mathematical Theory of Networks and Systems (MTNS 2014), 1837-1840
STARTPAGE=1837;ENDPAGE=1840;TITLE=Proceedings of the 21st International Symposium on Mathematical Theory of Networks and Systems (MTNS 2014)
STARTPAGE=1837;ENDPAGE=1840;TITLE=Proceedings of the 21st International Symposium on Mathematical Theory of Networks and Systems (MTNS 2014)
For an arbitrary given operator Schur function defined on the complex right-half plane, we give a controllable energy-preserving and an observable co-energy-preserving de Branges-Rovnyak functional model realization. Topics appearing only in the righ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=narcis______::7f56fdfa51ec4c857acf801d7648b3b2
https://research.utwente.nl/en/publications/functional-model-realizations-for-schur-functions-on-c(b23d3748-0bb2-4828-9efe-9a167ee637b1).html
https://research.utwente.nl/en/publications/functional-model-realizations-for-schur-functions-on-c(b23d3748-0bb2-4828-9efe-9a167ee637b1).html
Autor:
Schwenninger, F.L., Zwart, Heiko J.
Publikováno v:
Proceedings of the 21st International Symposium on Mathematical Theory of Networks and Systems, MTNS 2014, 230-232
STARTPAGE=230;ENDPAGE=232;TITLE=Proceedings of the 21st International Symposium on Mathematical Theory of Networks and Systems, MTNS 2014
STARTPAGE=230;ENDPAGE=232;TITLE=Proceedings of the 21st International Symposium on Mathematical Theory of Networks and Systems, MTNS 2014
The goal of the following is to use (infinite-dimensional) linear systems theory to approach the H-infinity - functional calculus. This extends recent work by the authors using the notion of admissible observation operators to define f(A) where f is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=narcis______::1d6f089cafd9b5b0c27c61c3c2dc4860
https://research.utwente.nl/en/publications/the-weak-admissibility-of-the-hinfinitycalculus-for-semigroup-generators(e3e80fc9-db1a-4389-9b3f-095e0b4d245b).html
https://research.utwente.nl/en/publications/the-weak-admissibility-of-the-hinfinitycalculus-for-semigroup-generators(e3e80fc9-db1a-4389-9b3f-095e0b4d245b).html
Autor:
Schwenninger, F.L., Zwart, Heiko J.
Publikováno v:
Indagationes mathematicae, 23(4), 796-815. Elsevier
We show that, given a reflexive Banach space and a generator of an exponentially stable $C_{0}$-semigroup, a weakly admissible operator $g(A)$ can be defined for any $g$ bounded, analytic function on the left half-plane. This yields an (unbounded) fu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=narcis______::07f1248ae07b25281317eeaa07082074
https://research.utwente.nl/en/publications/1aa9fe53-5e20-4d2c-892c-5fa39080618b
https://research.utwente.nl/en/publications/1aa9fe53-5e20-4d2c-892c-5fa39080618b
Autor:
Kurula, Mikael, Zwart, Heiko J.
This report gives an exact result on the duality of the divergence and gradient operators, when these are considered as operators between $L^2$-spaces on a bounded $n$-dimensional Lipschitz domain. The necessary background is described in detail, wit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=narcis______::dea62a17c81bef5bc5ea87030c13b8c5
https://research.utwente.nl/en/publications/the-duality-between-the-gradient-and-divergence-operators-on-bounded-lipschitz-domains(44e4c5e2-8323-42c5-bd18-ff1c845ea1fe).html
https://research.utwente.nl/en/publications/the-duality-between-the-gradient-and-divergence-operators-on-bounded-lipschitz-domains(44e4c5e2-8323-42c5-bd18-ff1c845ea1fe).html
Autor:
Hassi, Seppo, van der Schaft, Arjan, de Snoo, Henk, Zwart, Heiko J., Hassi, S., de Snoo, H.S.V., Szafraniec, F.H.
Publikováno v:
Operator Methods for Boundary Value Problems, 259-274
STARTPAGE=259;ENDPAGE=274;TITLE=Operator Methods for Boundary Value Problems
STARTPAGE=259;ENDPAGE=274;TITLE=Operator Methods for Boundary Value Problems
It is shown how Dirac structures, boundary control and conservative state/signal system nodes, and unitary boundary relations are connected via proper transforms between the underlying Krein spaces that are involved in all of these notions.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=narcis______::ac05d64a667e55453c81e36faa5b600b
https://research.utwente.nl/en/publications/dirac-structures-and-boundary-relations(1fbad411-e606-4b0a-9bfc-51b3d8eda579).html
https://research.utwente.nl/en/publications/dirac-structures-and-boundary-relations(1fbad411-e606-4b0a-9bfc-51b3d8eda579).html
Autor:
Zwart, Heiko J.
Publikováno v:
Journal of functional analysis, 263(1), 167-182. Academic Press Inc.
Let $A$ be the generator of a strongly continuous, exponentially stable, semigroup on a Hilbert space. Furthermore, let the scalar function $g$ be bounded and analytic on the left-half plane, i.e., $g(-s) \in {\mathcal H}_{\infty}$. By using the Toep
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=narcis______::6aadb1e65ce3fecd300aa19d136125ba
https://research.utwente.nl/en/publications/a633afe8-4ab6-4c2c-8465-dc9ab3f2b46a
https://research.utwente.nl/en/publications/a633afe8-4ab6-4c2c-8465-dc9ab3f2b46a
Autor:
Besseling, N.C., Zwart, Heiko J.
Let $A$ be the infinitesimal generator of an exponentially stable, strongly continuous semigroup on a Hilbert space. We show that the powers of the Cayley transform of $A$ are bounded by a constant times $\log (n+1)$. The proof is based on Lyapunov e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=narcis______::f99b768728eed733d950275e9049c8a4
https://research.utwente.nl/en/publications/the-growth-of-a-semigroup-and-its-cayley-transform(04c5387b-51bd-4552-a73a-456ea676c29b).html
https://research.utwente.nl/en/publications/the-growth-of-a-semigroup-and-its-cayley-transform(04c5387b-51bd-4552-a73a-456ea676c29b).html
Autor:
Zwart, Heiko J.
Publikováno v:
Proceedings of the 19th International Symposium on Mathematical Theory of Networks and Systems, MTNS 2010, 1679-1683
STARTPAGE=1679;ENDPAGE=1683;TITLE=Proceedings of the 19th International Symposium on Mathematical Theory of Networks and Systems, MTNS 2010
STARTPAGE=1679;ENDPAGE=1683;TITLE=Proceedings of the 19th International Symposium on Mathematical Theory of Networks and Systems, MTNS 2010
Given a Hilbert space and the generator A of a strongly continuous, exponentially stable, semigroup on this Hilbert space. For any $g(-s) \in H_{\infty}$ we show that there exists an infinite-time admissible output operator $g(A)$. If $g$ is rational
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=narcis______::3326786edd12344edfd2725895769f69
https://research.utwente.nl/en/publications/an-mathcalhinfty-calculus-of-admissible-operators(709508c9-b3f7-4672-97a3-157961e62aa0).html
https://research.utwente.nl/en/publications/an-mathcalhinfty-calculus-of-admissible-operators(709508c9-b3f7-4672-97a3-157961e62aa0).html