Temat: fixed point theorems - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Concavity of solutions of a 2n-th order problem with symmetry
Autorzy:: Twaty, A. A.
Eloe, P. W.
Powiązania:: https://bibliotekanauki.pl/articles/255093.pdf
Data publikacji:: 2013
Wydawca:: Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:: fixed-point theorems
concave and convex functionals
differential inequalities
symmetry
Opis:: In this article we apply an extension of a Leggett-Williams type fixed point theorem to a two-point boundary value problem for a 2n-th order ordinary differential equation. The fixed point theorem employs concave and convex functionals defined on a cone in a Banach space. Inequalities that extend the notion of concavity to 2n-th order differential inequalities are derived and employed to provide the necessary estimates. Symmetry is employed in the construction of the appropriate Banach space.
Źródło:: Opuscula Mathematica; 2013, 33, 4; 603-613
1232-9274
2300-6919
Pojawia się w:: Opuscula Mathematica
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Boundary value problems for n-th order differential inclusions with four-point integral boundary conditions
Autorzy:: Ahmad, B.
Ntouyas, S. K.
Powiązania:: https://bibliotekanauki.pl/articles/255975.pdf
Data publikacji:: 2012
Wydawca:: Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:: differential inclusions
four-point integral boundary conditions
existence
nonlinear alternative of Leray Schauder type
fixed-point theorems
Opis:: In this paper, we discuss the existence of solutions for a four-point integral boundary value problem of n-th order differential inclusions involving convex and non-convex multivalued maps. The existence results are obtained by applying the nonlinear alternative of Leray Schauder type and some suitable theorems of fixed point theory.
Źródło:: Opuscula Mathematica; 2012, 32, 2; 205-226
1232-9274
2300-6919
Pojawia się w:: Opuscula Mathematica
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Schauders fixed-point theorem in nonlinear controllability problems
Autorzy:: Klamka, J.
Powiązania:: https://bibliotekanauki.pl/articles/206701.pdf
Data publikacji:: 2000
Wydawca:: Polska Akademia Nauk. Instytut Badań Systemowych PAN
Tematy:: nieliniowy system sterowania
sterowalność
twierdzenie o punkcie stałym
continuous-time systems
controllability
fixed-point theorems
nonlinear control systems
Schauder's fixed point theorem
Opis:: This paper refers to application of the Schauder's fixed point theorem together with linear controllability results in getting the sufficient controllability conditions for various kinds of controllability and for different types of nonlinear control systems. The following nonlinear control systems are considered : finite-dimensional systems, systems with delays in control or in the state variables, and infinite-dimensional systems. The paper presents the review of results existing in the literature which show how Schauder's fixed-point theorem can be practically used to solve several controllability problems for different types of nonlinear control systems.
Źródło:: Control and Cybernetics; 2000, 29, 1; 153-165
0324-8569
Pojawia się w:: Control and Cybernetics
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 4.

Tytuł:: Detection and Control Problems for Non-Linear Distributed-Parameter Systems With Delays
Autorzy:: Namir, A.
Lahmidi, F.
Labriji, E. H.
Powiązania:: https://bibliotekanauki.pl/articles/911203.pdf
Data publikacji:: 2000
Wydawca:: Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:: system z rozproszonymi parametrami
detekcja
sterowanie
distributed-parameter systems
non-linear discrete-time systems
detection
control
fixed-point theorems
Opis:: First, we consider non-linear discrete-time and continuous-time systems with unknown inputs. The problem of reconstructing an input using the information given by an output equation is investigated. Then we examine a control problem for non-linear discrete-time hereditary systems, i.e. the problem of finding a control which drives the state of the system from its initial value to a given desired final state. The methods used to solve these problems are based on the state-space technique and fixed-point theorems. To illustrate the outlined ideas, various numerical simulation results are presented.
Źródło:: International Journal of Applied Mathematics and Computer Science; 2000, 10, 3; 437-464
1641-876X
2083-8492
Pojawia się w:: International Journal of Applied Mathematics and Computer Science
Dostawca treści:: Biblioteka Nauki

Artykuł

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