| ŠEPITKA, Peter a Roman ŠIMON HILSCHER. Principal solutions at infinity for time scale symplectic systems without controllability condition. Journal of Mathematical Analysis and Applications. Elsevier, 2016, roč. 444, č. 2, s. 852-880. ISSN 0022-247X. Dostupné z: https://dx.doi.org/10.1016/j.jmaa.2016.06.057. |
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@article{1348816,
author = {Šepitka, Peter and Šimon Hilscher, Roman},
article_number = {2},
doi = {http://dx.doi.org/10.1016/j.jmaa.2016.06.057},
keywords = {Symplectic system; Time scale; Linear Hamiltonian system; Principal solution at infinity; Controllability; Nonoscillation},
language = {eng},
issn = {0022-247X},
journal = {Journal of Mathematical Analysis and Applications},
title = {Principal solutions at infinity for time scale symplectic systems without controllability condition},
volume = {444},
year = {2016}
}
TY - JOUR
ID - 1348816
AU - Šepitka, Peter - Šimon Hilscher, Roman
PY - 2016
TI - Principal solutions at infinity for time scale symplectic systems without controllability condition
JF - Journal of Mathematical Analysis and Applications
VL - 444
IS - 2
SP - 852-880
EP - 852-880
PB - Elsevier
SN - 0022247X
KW - Symplectic system
KW - Time scale
KW - Linear Hamiltonian system
KW - Principal solution at infinity
KW - Controllability
KW - Nonoscillation
N2 - In this paper we introduce a new concept of a principal solution at infinity for nonoscillatory symplectic dynamic systems on time scales. The main ingredient is that we avoid the controllability (or normality) condition, which is traditionally assumed in this theory in the current literature. We show that the principal solutions at infinity can be classified according to the eventual rank of their first component and that the principal solutions exist for all values of the rank between explicitly given minimal and maximal values. The minimal value of the rank is connected with the eventual order of abnormality of the system and it gives rise to the so-called minimal principal solution at infinity. We show that the uniqueness property of the principal solutions at infinity is satisfied only by the minimal principal solution. In this study we unify and extend to arbitrary time scales the recently introduced theory of principal and recessive solutions at infinity for possibly abnormal (continuous time) linear Hamiltonian differential systems and (discrete time) symplectic systems. Moreover, the new theory on time scales also shows that in some results from the continuous time theory the needed assumptions can be simplified.
ER -
ŠEPITKA, Peter a Roman ŠIMON HILSCHER. Principal solutions at infinity for time scale symplectic systems without controllability condition. \textit{Journal of Mathematical Analysis and Applications}. Elsevier, 2016, roč.~444, č.~2, s.~852-880. ISSN~0022-247X. Dostupné z: https://dx.doi.org/10.1016/j.jmaa.2016.06.057.
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