Zobrazeno 1 - 10
of 1 023
pro vyhledávání: '"Zvonarev A"'
Publikováno v:
SciPost Phys. 15, 073 (2023)
We investigate finite temperature spin transport in one spatial dimension by considering the spin-spin correlation function of the Hubbard model in the limiting case of infinitely strong repulsion. We find that in the absence of bias the transport is
Externí odkaz:
http://arxiv.org/abs/2301.13840
We propose a transformation for spin and charge degrees of freedom in one-dimensional lattice systems, constrained to have no doubly occupied sites, that allows direct access to the dynamical correlations of the system. The transformation delivers pa
Externí odkaz:
http://arxiv.org/abs/2301.02164
Autor:
Golyandina, Nina1 (AUTHOR) n.golyandina@spbu.ru, Zvonarev, Nikita1 (AUTHOR)
Publikováno v:
Algorithms. Sep2024, Vol. 17 Issue 9, p395. 22p.
Autor:
Nina Golyandina, Nikita Zvonarev
Publikováno v:
Algorithms, Vol 17, Iss 9, p 395 (2024)
In singular spectrum analysis, which is applied to signal extraction, it is of critical importance to select the number of components correctly in order to accurately estimate the signal. In the case of a low-rank signal, there is a challenge in esti
Externí odkaz:
https://doaj.org/article/ec47366db3f4403ca668501bb918712a
Autor:
Zvonarev, Anton1 (AUTHOR) zvonarevibpm@gmail.com, Terentyev, Vasily2 (AUTHOR), Zhelifonova, Valentina1 (AUTHOR) avtukh@rambler.ru, Antipova, Tatiana1,3 (AUTHOR) kachalkin_a@mail.ru, Baskunov, Boris1 (AUTHOR), Avtukh, Aleksander1 (AUTHOR), Abashina, Tatiana1 (AUTHOR), Kachalkin, Aleksey1,4 (AUTHOR), Vainshtein, Mikhail1 (AUTHOR) tatantip@pbcras.ru, Kudryavtseva, Anna5 (AUTHOR)
Publikováno v:
Journal of Fungi. Jul2024, Vol. 10 Issue 7, p463. 14p.
We investigate the behavior of a finite-momentum impurity immersed in a weakly interacting three-dimensional Bose-Einstein condensate (BEC) of ultra-cold atoms, giving a detailed account of the dynamical quantum Cherenkov transition discussed in Ref.
Externí odkaz:
http://arxiv.org/abs/2109.12260
Autor:
Zvonarev, Nikita, Golyandina, Nina
Publikováno v:
Numer Linear Algebra Appl. 2022; 29( 4):e2428
The weighted nonlinear least-squares problem for low-rank signal estimation is considered. The problem of constructing a numerical solution that is stable and fast for long time series is addressed. A modified weighted Gauss-Newton method, which can
Externí odkaz:
http://arxiv.org/abs/2106.14215
Autor:
Anton N. Zvonarev, Ludmila V. Trilisenko, Vasilina V. Farofonova, Ekaterina V. Kulakovskaya, Tatiana N. Abashina, Vladimir V. Dmitriev, Tatiana Kulakovskaya
Publikováno v:
Journal of Xenobiotics, Vol 13, Iss 4, Pp 529-543 (2023)
The cell wall of Candida yeast grown on presence of hexadecane as a sole carbon source undergoes structural and functional changes including the formation of specific supramolecular complexes—canals. The canals contain specific polysaccharides and
Externí odkaz:
https://doaj.org/article/31353745734848f4aeb8ff96f93dc7a4
Autor:
Zvonarev, Nikita, Golyandina, Nina
Publikováno v:
Statistics and Its Interface, Vol. 16, No. 1 (2023), pp. 117-132
The paper contains several theoretical results related to the weighted nonlinear least-squares problem for low-rank signal estimation, which can be considered as a Hankel structured low-rank approximation problem. A parameterization of the subspace o
Externí odkaz:
http://arxiv.org/abs/2101.09779
Autor:
Anton Zvonarev, Vasily Terentyev, Valentina Zhelifonova, Tatiana Antipova, Boris Baskunov, Aleksander Avtukh, Tatiana Abashina, Aleksey Kachalkin, Mikhail Vainshtein, Anna Kudryavtseva
Publikováno v:
Journal of Fungi, Vol 10, Iss 7, p 463 (2024)
Most Fusarium species are known as endophytes and/or phytopathogens of higher plants and have a worldwide distribution. Recently, information discovered with molecular tools has been also published about the presence of these fungi in the microbiome
Externí odkaz:
https://doaj.org/article/b55447ebbfe1412d9fc4fcc7fa248a90