Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Tomas Sanchez-Giralda"'
Publikováno v:
Open Mathematics, Vol 19, Iss 1, Pp 101-110 (2021)
The regulator problem is solvable for a linear dynamical system Σ \Sigma if and only if Σ \Sigma is both pole assignable and state estimable. In this case, Σ \Sigma is a canonical system (i.e., reachable and observable). When the ring R R is a fie
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::86d22744b1af99b1c17119451e6bc8e9
https://doaj.org/article/5b7ccb2f50494b9ba7f129c40bc4d0db
https://doaj.org/article/5b7ccb2f50494b9ba7f129c40bc4d0db
Publikováno v:
Linear Algebra and its Applications. 429(5-6):1277-1287
We characterize the class of commutative rings R such that, for any linear system ( A , B ) with coefficients in R, one can extract the reachable part of the system, in a way similar to the classical Kalman controllability decomposition for systems o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c042d19a5a49f149c856becb695be3d3
Publikováno v:
Systems & Control Letters. 57:71-77
For nonnecessarily reachable systems over a commutative ring R , we define a strong form of feedback cyclization ( FC ). With this natural generalization of the FC property we obtain a feedback reduced form for systems over strong FC rings (i.e. ring
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::69a4c93f9fc7fd338f2c096c91d32d7c
https://doi.org/10.1016/j.sysconle.2007.06.017
https://doi.org/10.1016/j.sysconle.2007.06.017
Autor:
A. Sáez-Schwedt, Tomas Sanchez-Giralda
Publikováno v:
Communications in Algebra. 30:2993-3011
In this paper we study the action of the feedback group on m-input, 2-dimensional linear dynamical systems over a commutative ring R, in order to calculate canonical forms. We define a set for each element g of R . For a class of systems, a complete
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a7e9d267c84d0cdb3cd7faea9d3977cf
https://doi.org/10.1081/agb-120004004
https://doi.org/10.1081/agb-120004004
Publikováno v:
Linear Algebra and its Applications. 346:97-107
This paper deals with the pole-shifting problem for non-necessarily reachable linear systems. The notion of PS ring is introduced in the same way as the notion of pole assignable ring is given for reachable systems. We prove that a bcs ring is a PS r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::afe63a6899c581eacf66481fcf92df1e
https://doi.org/10.1016/s0024-3795(01)00502-x
https://doi.org/10.1016/s0024-3795(01)00502-x
Publikováno v:
Scopus-Elsevier
Let ∑ and ∑' be two m -input n -dimensional linear dynamical systems over a commutative ring R . If ∑ is feedback equivalent to ∑' then ∑ is pointwise feedback equivalent to ∑' (i.e. for all prime ideal p of R the systems ∑( p ) and ∑
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f24ab6f3c470dc85fb597144add86396
https://doi.org/10.1016/s0024-3795(98)00020-2
https://doi.org/10.1016/s0024-3795(98)00020-2
Autor:
Tomas Sanchez-Giralda, Granja Angel
Publikováno v:
Communications in Algebra. 20:527-562
(1992). Enriques graphs of plane curves. Communications in Algebra: Vol. 20, No. 2, pp. 527-562.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c65551b9c423a2de246c41b056722b9c
https://doi.org/10.1080/00927879208824355
https://doi.org/10.1080/00927879208824355
Publikováno v:
Linear Algebra and its Applications. 139:175-180
The main result in this paper characterizes those commutative rings R having the property that every linear dynamical system over R verifies the duality principle [i.e., the system Σ is observable (reachable) if and only if the dual system Σ t is r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::49d5979c8d06f8d88b3e32c8954a7d0b
Publikováno v:
Linear Algebra and its Applications. (2-3):297-302
We study linear systems (F, G) with coefficients in a commutative ring R with the GCU property: whenever (F, G) is controllable, there exists a vector u with Gu unimodular. Our main result is: a GCU ring is an FC2 ring (i.e. every two-dimensional con
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0eaf8a99211421beb04c2f21ab4f69e5
Autor:
Tomas Sanchez-Giralda, José A. Hermida
Publikováno v:
Ring Theory ISBN: 9783540194743
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::24757e547d8ed26ee8d7b6407c4995b6
https://doi.org/10.1007/bfb0100921
https://doi.org/10.1007/bfb0100921
