Zobrazeno 1 - 10
of 240
pro vyhledávání: '"A. A. Koshkarov"'
Autor:
R. A. Murashko, S. N. Alekseenko, A. A. Koshkarov, L. G. Teslenko, M. A. Korogod, I. T. Rubtsova
Publikováno v:
Кубанский научный медицинский вестник, Vol 28, Iss 1, Pp 84-102 (2021)
Background. Cancer care involves a multidisciplinary approach to diagnosis and treatment of patients. A complex interaction of actors in the deployment of oncology services dictates usage of modern management technologies for improving the quality an
Externí odkaz:
https://doaj.org/article/44dd51615d9a429a93e8d9f04b0f8985
We derive conservative closures of the Vlasov-Poisson equations discretized in velocity via the symmetrically weighted Hermite spectral expansion. The short note analyzes the conservative closures preservation of the hyperbolicity and anti-symmetry o
Externí odkaz:
http://arxiv.org/abs/2407.09626
Autor:
Edyvean, Jago, Parashar, Tulasi N., Simpson, Tom, Juno, James, Delzanno, Gian Luca, Guo, Fan, Koshkarov, Oleksandr, Matthaeus, William H, Shay, Michael, Yang, Yan
Understanding plasma turbulence requires a synthesis of experiments, observations, theory, and simulations. In the case of kinetic plasmas such as the solar wind, the lack of collisions renders the fluid closures such as viscosity meaningless and one
Externí odkaz:
http://arxiv.org/abs/2404.12105
Publikováno v:
Digital Diagnostics, Vol 2, Iss 2S, Pp 6-7 (2021)
Externí odkaz:
https://doaj.org/article/012cd72325854a85b03ed2489e968822
Autor:
Wollaeger, Ryan T., Fryer, Chris L., Chiodi, Robert, Brady, Peter T., Korobkin, Oleg, Harnish, Cale, Fontes, Christopher J., Haack, Jeffrey R., Chapurin, Oleksandr, Koshkarov, Oleksandr, Delzanno, Gian Luca, Livescu, Daniel
The interaction of $\beta$-particles with the weakly ionized plasma background is an important mechanism for powering the kilonova transient signal from neutron star mergers. For this purpose, we present an implementation of the approximate fast-part
Externí odkaz:
http://arxiv.org/abs/2401.11069
We analyze the anti-symmetric properties of a spectral discretization for the one-dimensional Vlasov-Poisson equations. The discretization is based on a spectral expansion in velocity with the symmetrically weighted Hermite basis functions, central f
Externí odkaz:
http://arxiv.org/abs/2312.05439
Publikováno v:
Ecology and Evolution, Vol 14, Iss 8, Pp n/a-n/a (2024)
Abstract Phylogenetic trees represent the evolutionary relationships and ancestry of various species or groups of organisms. Comparing these trees by measuring the distance between them is essential for applications such as tree clustering and the Tr
Externí odkaz:
https://doaj.org/article/f8f9560072604cdba41f835586357615
Publikováno v:
In Journal of Computational Physics 1 October 2024 514
Autor:
Pagliantini, Cecilia, Manzini, Gianmarco, Koshkarov, Oleksandr, Delzanno, Gian Luca, Roytershteyn, Vadim
We study the conservation properties of the Hermite-discontinuous Galerkin (Hermite-DG) approximation of the Vlasov-Maxwell equations. In this semi-discrete formulation, the total mass is preserved independently for every plasma species. Further, an
Externí odkaz:
http://arxiv.org/abs/2110.11511
Autor:
Aleksandr Koshkarov, Nadia Tahiri
Publikováno v:
Symmetry, Vol 16, Iss 7, p 790 (2024)
Comparing phylogenetic trees is a prominent problem widely used in applications such as clustering and building the Tree of Life. While there are many well-developed distance measures for phylogenetic trees defined on the same set of taxa, the situat
Externí odkaz:
https://doaj.org/article/f97a7c6c53634c0ea28ecff0bba1f5d3