Zobrazeno 1 - 10
of 915
pro vyhledávání: '"self-adjointness"'
Autor:
Zhi-jie Jiang
Publikováno v:
AIMS Mathematics, Vol 9, Iss 9, Pp 24989-24997 (2024)
One major aim of this paper is to characterize the self-adjointness of some special weighted composition operators on Fock space, and another major aim is to characterize the hyponormality of some composition operators on such space.
Externí odkaz:
https://doaj.org/article/78ae5990ae284b85adc8c58da07e4195
Autor:
Peiying Huang, Yiyuan Zhang
Publikováno v:
AIMS Mathematics, Vol 9, Iss 7, Pp 17847-17870 (2024)
In this paper, we conducted a study of H-Toeplitz operators on the Dirichlet type space $ \mathfrak{D}_{t} $, which included several aspects. To begin, we established the matrix representation of the H-Toeplitz operator $ S_{\varphi} $ with respect t
Externí odkaz:
https://doaj.org/article/5664fc5cb39b476eb817cd220b7e8afc
Autor:
David Krejčiřík, Petr Siegl
Publikováno v:
Frontiers in Physics, Vol 12 (2024)
Pseudomodes of non-self-adjoint Schrödinger operators corresponding to large pseudoeigenvalues are constructed. The approach is non-semiclassical and extendable to other types of models including the damped wave equation and Dirac operators.
Externí odkaz:
https://doaj.org/article/4d51093de5fb476ea742b7f06b9da41f
Autor:
Bertlmann, Reinhold A., author, Friis, Nicolai, author
Publikováno v:
Modern Quantum Theory : From Quantum Mechanics to Entanglement and Quantum Information, 2023.
Externí odkaz:
https://doi.org/10.1093/oso/9780199683338.003.0003
Akademický článek
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Autor:
Amjad Hussain, Muhammad Khubaib Zia, Kottakkaran Sooppy Nisar, Velusamy Vijayakumar, Ilyas Khan
Publikováno v:
AIMS Mathematics, Vol 7, Iss 7, Pp 13139-13168 (2022)
In this article, the generalized $ \left(N+1\right) $-dimensional nonlinear Boussinesq equation is analyzed via Lie symmetry method. Lie point symmetries of the considered equation and accompanying invariant groups are computed. After transforming th
Externí odkaz:
https://doaj.org/article/c2f52b3d000e4f5cac942b8929087097
Publikováno v:
Symmetry, Vol 15, Iss 12, p 2163 (2023)
The symmetry of the spectrum and the completeness of the eigenfunction system of the Hamiltonian operator matrix have important applications in the symplectic Fourier expansion method in elasticity. However, the symplectic self-adjointness of Hamilto
Externí odkaz:
https://doaj.org/article/b35df6dfca994803a97188bf364e4290
Publikováno v:
Symmetry, Vol 15, Iss 12, p 2122 (2023)
In this paper, we consider how to find new exact solutions for nonlinear partial differential equations using the extended Kudryashov method. This method mainly uses the Riccati equation and the Bernoulli equation where there are some underdetermined
Externí odkaz:
https://doaj.org/article/cd0f40a1d772466ab31352e125da8fca
Autor:
S. Reza Hejazi, Azadeh Naderifard
Publikováno v:
AUT Journal of Mathematics and Computing, Vol 3, Iss 1, Pp 17-26 (2022)
In this paper group-invariant properties of the Dym equation are studied. Lie symmetries are given and some group-invariant solutions are found with the use of similarity variables obtained from these operators. Conservation laws are computed via thr
Externí odkaz:
https://doaj.org/article/bff725814383426eba7e0dc16eb00d5b
Akademický článek
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