Zobrazeno 1 - 10
of 10
pro vyhledávání: '"N A Chekanov"'
Publikováno v:
Journal of Physics: Conference Series. 1479:012097
Given article presents a generalized equation for calculating the average coordination number from the density of a random sphere packing, supplemented by a dependence on the threshold value of the interparticle distance in two- and three-dimensional
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bf66a0b1cfa3b7b51f7f6ba2b82f3435
https://doi.org/10.1088/1742-6596/1479/1/012097
https://doi.org/10.1088/1742-6596/1479/1/012097
2-Isoxazolines with an electron-acceptor substituent at C(5) in reactions with nucleophilic reagents
Publikováno v:
Chemistry of Heterocyclic Compounds. 43:362-369
Depending on the substituent at position 5 of the heterocycle, reaction of 2-isoxazolines with K-selectride, molybdenum hexacarbonyl, dimsyl sodium, and butyl lithium gave 1,3-cyclo-decomposition, aromatization of the isoxazoline ring, or reduction o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::57ea37d90f49595f95534291da86e7d9
https://doi.org/10.1007/s10593-007-0053-6
https://doi.org/10.1007/s10593-007-0053-6
Autor:
O A, Makeeva, A A, Sleptsov, E V, Kulish, O L, Barbarash, A M, Mazur, E B, Prokhorchuk, N N, Chekanov, V A, Stepanov, V P, Puzyrev
Publikováno v:
Acta Naturae
Comorbidity or a combination of several diseases in the same individual is a common and widely investigated phenomenon. However, the genetic background for non–random disease combinations is not fully understood. Modern technologies and approaches
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::04d19899047ede0b32f8430bcae05ec3
https://pubmed.ncbi.nlm.nih.gov/26483964
https://pubmed.ncbi.nlm.nih.gov/26483964
Publikováno v:
Programming and Computer Software. 30:75-82
Algorithms and programs for the normalization of polynomial Hamiltonians of classical mechanics by the Birkhoff–Gustavson and Deprit–Hori, as well as quasi-classical quantization procedures for normal forms, are compared. The algorithms and progr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9d744c28b134b9aa456400b707115425
https://doi.org/10.1023/b:pacs.0000021264.38623.52
https://doi.org/10.1023/b:pacs.0000021264.38623.52
Publikováno v:
Computer Physics Communications. 126:47-50
We present briefly a symbolic computing program named GITA −1 working on REDUCE 3.3 or later, which solves an `inverse problem' for the Birkhoff–Gustavson normal form (BGNF) expansion.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4ad59af14b2927f9e51bcd7299b4546d
https://doi.org/10.1016/s0010-4655(99)00491-9
https://doi.org/10.1016/s0010-4655(99)00491-9
Publikováno v:
Computer Algebra in Scientific Computing ISBN: 9783540451822
CASC
CASC
A general scheme of a symbolic-numeric approach for solving the eigenvalue problem for the one-dimensional Shrodinger equation is presented. The corresponding algorithm of the developed program EWA using a conventional pseudocode is described too. Wi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c1e9de1a7d4befe1892b170fa5c903f0
https://doi.org/10.1007/11870814_2
https://doi.org/10.1007/11870814_2
Publikováno v:
SPIE Proceedings.
An economy method of numerical solving the partial isospectral 2D boundary problem in self-consistent basis is elaborated. An efficiency of the method is shown for an integrable system described by a generalized Henon-Heiles Hamiltonian depended on t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::44ba680136fd259409da314815dd19a7
https://doi.org/10.1117/12.636967
https://doi.org/10.1117/12.636967
Autor:
Sergey I. Vinitsky, Alexander Gusev, V. A. Rostovtsev, Yu. A. Ukolov, N. A. Chekanov, I. N. Belyaeva, Yoshio Uwano
Publikováno v:
Computer Algebra in Scientific Computing ISBN: 9783540289661
CASC
CASC
The symbolic-numeric program SELFA for solving the the 2D boundary-value problem in self-consistent basis method is presented. The corresponding algorithm of this program using a conventional pseudocode is described too. As example, the energy spectr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c24c2dce0265b11f93d75fbd405e62d2
https://doi.org/10.1007/11555964_3
https://doi.org/10.1007/11555964_3
Publikováno v:
Computer Algebra in Scientific Computing CASC’99 ISBN: 9783540660477
CASC
CASC
In this paper, the normalization of a class of polynomial Hamiltonians based on the symbolic computing is disscussed from both the ordinary and the inverse direction-points of view. The truncated three-particle Toda linear chain(3- TLC) and the regul
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d3cf49a058663c7cbb5e4ea68baf6088
http://cds.cern.ch/record/405862
http://cds.cern.ch/record/405862
Publikováno v:
Programming & Computer Software; Mar2004, Vol. 30 Issue 2, p75-82, 8p