Temat: semigroup theory - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Measure of noncompactness and neutral functional differential equations with state-dependent delay
Autorzy:: Benchohra, M.
Henderson, J.
Medjadj, I.
Powiązania:: https://bibliotekanauki.pl/articles/357717.pdf
Data publikacji:: 2016
Wydawca:: Politechnika Rzeszowska im. Ignacego Łukasiewicza. Oficyna Wydawnicza
Tematy:: neutral functional differential equation
mild solution
infinite delay
state-dependent delay
fixed point
semigroup theory
cosine function
measure of noncompactness
równanie różniczkowe
zagadnienie Cauchy'ego
opóźnienia nieskończone
punkt stały
teoria półgrup
funkcja cosinus
miara niezwartości
Opis:: Our aim in this work is to study the existence of solutions of first and second order for neutral functional differential equations with state-dependent delay. We use the Mönch’s fixed point theorem for the existence of solutions and the concept of measures of noncompactness.
Źródło:: Journal of Mathematics and Applications; 2016, 39; 23-45
1733-6775
2300-9926
Pojawia się w:: Journal of Mathematics and Applications
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 2.

Tytuł:: Diffusions in one-dimensional bounded domains with reflection, absorption and jumps at the boundary and at some interior point
Autorzy:: Kopytko, B.
Shevchuk, R.
Powiązania:: https://bibliotekanauki.pl/articles/122365.pdf
Data publikacji:: 2013
Wydawca:: Politechnika Częstochowska. Wydawnictwo Politechniki Częstochowskiej
Tematy:: classical potential theory
boundary value problem
Feller semigroup
Opis:: By the method of classical potential theory, we obtain the integral representation of the two-parameter operator semigroup that describes the inhomogeneous Feller process on a closed interval [ r1,r2 ] that is a result of pasting together two diffusion processes given on ( r1,r, ) and ( r, r2 ), respectively, where - ∞ < r1 < r < r2 <∞ .
Źródło:: Journal of Applied Mathematics and Computational Mechanics; 2013, 12, 1; 55-68
2299-9965
Pojawia się w:: Journal of Applied Mathematics and Computational Mechanics
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 3.

Tytuł:: Potential theory for the α-stable Schrödinger operator on bounded Lipschitz domains
Autorzy:: Bogdan, Krzysztof
Byczkowski, Tomasz
Powiązania:: https://bibliotekanauki.pl/articles/1217276.pdf
Data publikacji:: 1999
Wydawca:: Polska Akademia Nauk. Instytut Matematyczny PAN
Tematy:: α-stable Lévy processes
α-stable Feynman-Kac semigroup
weak fractional Laplacian
α-stable Schrödinger operator
potential theory
q-harmonic functions
conditional gauge theorem
Opis:: The purpose of the paper is to extend results of the potential theory of the classical Schrödinger operator to the α-stable case. To obtain this we analyze a weak version of the Schrödinger operator based on the fractional Laplacian and we prove the Conditional Gauge Theorem.
Źródło:: Studia Mathematica; 1999, 133, 1; 53-92
0039-3223
Pojawia się w:: Studia Mathematica
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 4.

Tytuł:: Well-Posed Linear Systems - a Survey With Emphasis on Conservative Systems
Autorzy:: Weiss, G.
Staffans, O. J.
Tucsnak, M.
Powiązania:: https://bibliotekanauki.pl/articles/908320.pdf
Data publikacji:: 2001
Wydawca:: Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:: system liniowy
układ zachowawczy
równanie różniczkowe
well-posed linear systems
regular linear system
operator semigroup
consevative system
scattering theory
time-flow-inversion
differential equations in Hilbert space
beam equation
Opis:: We survey the literature on well-posed linear systems, which has been an area of rapid development in recent years. We examine the particular subclass of conservative systems and its connections to scattering theory. We study some transformations of well-posed systems, namely duality and time-flow inversion, and their effect on the transfer function and the generating operators. We describe a simple way to generate conservative systems via a second-order differential equation in a Hilbert space. We give results about the stability, controllability and observability of such conservative systems and illustrate these with a system modeling a controlled beam.
Źródło:: International Journal of Applied Mathematics and Computer Science; 2001, 11, 1; 7-33
1641-876X
2083-8492
Pojawia się w:: International Journal of Applied Mathematics and Computer Science
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 5.

Tytuł:: On one-dimensional diffusion processes with moving membranes
Autorzy:: Kopytko, Bohdan
Shevchuk, Roman
Powiązania:: https://bibliotekanauki.pl/articles/2202027.pdf
Data publikacji:: 2022
Wydawca:: Politechnika Częstochowska. Wydawnictwo Politechniki Częstochowskiej
Tematy:: diffusion processes with membrane
two-parapeter Feller semigroup
nonlocal boundary conditions
method of potential theory
procesy dyfuzyjne z membraną
dwuparapetowa półgrupa Fellera
nielokalny warunek brzegowy
metoda teorii potencjału
Opis:: Using the method of the classical potential theory, we construct the two-parameter Feller semigroup associated, on the given interval of the real line, with the Markov proces such that it is a result of pasting together, at some point of the interval, two ordinary diffusion processes given in sub-domains of this interval. It is assumed that the position on the line of boundary points of these sub-domains depends on the time variable. In addition, some variants of the general nonlocal boundary condition of Feller-Wentzell’s type are given in these points. The resulting process can serve as a one-dimensional mathematical model of the physical phenomenon of diffusion in media with moving membranes.
Źródło:: Journal of Applied Mathematics and Computational Mechanics; 2022, 21, 3; 45--57
2299-9965
Pojawia się w:: Journal of Applied Mathematics and Computational Mechanics
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 6.

Tytuł:: J-energy preserving well-posed linear systems
Autorzy:: Staffans, O. J.
Powiązania:: https://bibliotekanauki.pl/articles/908123.pdf
Data publikacji:: 2001
Wydawca:: Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:: układ zachowawczy
system liniowy
równanie Lyapunova
równanie różniczkowe Riccatiego
well-posed linear systems
system node
transfer function
Lax-Phillips semigroup
dissipative systems
conservative system
model theory
conservative realization
J-energy-preserving system
Lyapunov equations
Riccati equation
Opis:: The following is a short survey of the notion of a well-posed linear system. We start by describing the most basic concepts, proceed to discuss dissipative and conservative systems, and finally introduce J-energy-preserving systems, i.e., systems that preserve energy with respect to some generalized inner products (possibly semi-definite or indefinite) in the input, state and output spaces. The class of well-posed linear systems contains most linear time-independent distributed parameter systems: internal or boundary control of PDE's, integral equations, delay equations, etc. These systems have existed in an implicit form in the mathematics literature for a long time, and they are closely connected to the scattering theory by Lax and Phillips and to the model theory by Sz.-Nagy and Foias. The theory has been developed independently by many different schools, and it is only recently that these different approaches have begun to converge. One of the most interesting objects of the present study is the Riccati equation theory for this class of infinite-dimensional systems (H2- and Hinfty-theories).
Źródło:: International Journal of Applied Mathematics and Computer Science; 2001, 11, 6; 1361-1378
1641-876X
2083-8492
Pojawia się w:: International Journal of Applied Mathematics and Computer Science
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Informacja

Wyszukujesz frazę "semigroup theory" wg kryterium: Temat

Źródło danych

Dostawca treści

Kolekcja

Rok wydania

Wydawca

Temat

Autor

Typ dokumentu

Język