Temat: eigenvectors - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Stochastic differential equations for random matrices processes in the nonlinear framework
Autorzy:: Stihi, S.
Boutabia, H.
Meradji, S,
Powiązania:: https://bibliotekanauki.pl/articles/255162.pdf
Data publikacji:: 2018
Wydawca:: Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:: G-Brownian motion matrix
G-stochastic differential equations
random matrices
eigenvalues
eigenvectors
Opis:: In this paper, we investigate the processes of eigenvalues and eigenvectors of a symmetric matrix valued process Xt, where Xt is the solution of a general SDE driven by a G-Brownian motion matrix. Stochastic differential equations of these processes are given. This extends results obtained by P. Graczyk and J. Malecki in [Multidimensional Yamada-Watanabe theorem and its applications to particle systems, J. Math. Phys. 54 (2013), 021503].
Źródło:: Opuscula Mathematica; 2018, 38, 2; 261-283
1232-9274
2300-6919
Pojawia się w:: Opuscula Mathematica
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Simple eigenvectors of unbounded operators of the type "normal plus compact"
Autorzy:: Gil, M.
Powiązania:: https://bibliotekanauki.pl/articles/255388.pdf
Data publikacji:: 2015
Wydawca:: Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:: Hilbert space
linear operators
eigenvectors
approximation
integro-differential operators
Schatten-von Neumann operators
Opis:: The paper deals with operators of the form A = S + B, where B is a compact operator in a Hilbert space H and S is an unbounded normal one in H, having a compact resolvent. We consider approximations of the eigenvectors of A, corresponding to simple eigenvalues by the eigenvectors of the operators An = S + Bn (n = 1, 2,...), where Bn is an n-dimensional operator. In addition, we obtain the error estimate of the approximation.
Źródło:: Opuscula Mathematica; 2015, 35, 2; 161-169
1232-9274
2300-6919
Pojawia się w:: Opuscula Mathematica
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: A first-order spectral phase transition in a class of periodically modulated Hermitian Jacobi matrices
Autorzy:: Pchelintseva, I.
Powiązania:: https://bibliotekanauki.pl/articles/255740.pdf
Data publikacji:: 2008
Wydawca:: Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:: Jacobi matrices
spectral phase transition
absolutely continuous spectrum
pure point spectrum
discrete spectrum
subordinacy theory
asymptotics of generalized eigenvectors
Opis:: We consider self-adjoint unbounded Jacobi matrices with diagonal q(n) = b(n)n and off-diagonal entries λ(n) = n, where b(n) is a 2-periodical sequence of real numbers. The parameter space is decomposed into several separate regions, where the spectrum of the operator is either purely absolutely continuous or discrete. We study the situation where the spectral phase transition occurs, namely the case of b(1)b(2) = 4. The main motive of the paper is the investigation of asymptotics of generalized eigenvectors of the Jacobi matrix. The pure point part of the spectrum is analyzed in detail.
Źródło:: Opuscula Mathematica; 2008, 28, 2; 137-150
1232-9274
2300-6919
Pojawia się w:: Opuscula Mathematica
Dostawca treści:: Biblioteka Nauki

Artykuł

Informacja