Zobrazeno 1 - 10
of 115
pro vyhledávání: '"Denis Borisov"'
Autor:
Denis Borisov
Publikováno v:
Acta Polytechnica, Vol 54, Iss 2 (2014)
We consider a model of a planar PT-symmetric waveguide and study the phenomenon of the eigenvalue collision under perturbation of the boundary conditions. This phenomenon was discovered numerically in previous works. The main result of this work is a
Externí odkaz:
https://doaj.org/article/d47d5018bde24037959c0a989aa8a4a1
A new type of dimerization of dimethyl (β-styryl)malonates in the presence of TiCl4 accompanied by elimination of a methanol molecule was discovered. Selective methods for the synthesis of substituted trimethyl 4-hydroxy-[1,1´-biaryl]-3,3,5(2H)-tri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::94c8856eb7119e6662f624e7a2bbca68
https://doi.org/10.26434/chemrxiv-2022-j6lxx
https://doi.org/10.26434/chemrxiv-2022-j6lxx
Publikováno v:
Journal of Mathematical Sciences. 257:551-568
We consider a perturbed graph consisting of two infinite edges, a loop, and a glued arbitrary finite graph γe with small edges, where γe is obtained by e−1 times contraction of some fixed graph and e is a small parameter. On the perturbed graph,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e6326d082b0edd69576779696f342933
https://doi.org/10.1007/s10958-021-05503-2
https://doi.org/10.1007/s10958-021-05503-2
Autor:
Denis Borisov
Publikováno v:
Journal of Mathematical Sciences. 257:273-285
In this paper, we consider the Laplace operator in a flat band whose lower boundary periodically oscillates under the Dirichlet boundary condition. The period and the amplitude of oscillations are two independent small parameters. The main result obt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::63b12a13c9272f9bd34745fdc239ef5c
https://doi.org/10.1007/s10958-021-05481-5
https://doi.org/10.1007/s10958-021-05481-5
Autor:
A. I. Mukhametrakhimova, Denis Borisov
Publikováno v:
Sbornik: Mathematics. 212:1068-1121
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e36e5f93afbdde0f617341dae10ddee7
https://doi.org/10.1070/sm9435
https://doi.org/10.1070/sm9435
Autor:
Denis Borisov
Publikováno v:
Doklady Mathematics. 103:113-117
We consider a general scalar self-adjoint elliptic second order operator with general boundary conditions on an arbitrary metric graph containing a subgraph with edges of lengths proportional to a small parameter. We show that the resolvent of such o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ae9bb7d90a4d23fc4da6a6a9871b8691
https://doi.org/10.1134/s1064562421030054
https://doi.org/10.1134/s1064562421030054
Publikováno v:
Russian Engineering Research. 41:862-864
Mathematical models are obtained for the temperature fields at the surface of a coated polymer tool electrode and a workpiece electrode in electrical discharge machining (EDM). In electrical discharge machining with a coated polymer tool electrode, t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c640a9fb3681216f486d3c86b390eebc
https://doi.org/10.3103/s1068798x21090070
https://doi.org/10.3103/s1068798x21090070
Autor:
Denis Borisov
Publikováno v:
Journal of Mathematical Sciences. 253:599-617
We consider the Schrodinger periodic magnetic operator in an infinite flat straight strip. We prove that if the magnetic potential satisfies certain conditions and the period is small enough, then the lower part of the band spectrum has no inner lacu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e123a1b9d2e2d59dfa8ce3d55ab6bcb7
https://doi.org/10.1007/s10958-021-05257-x
https://doi.org/10.1007/s10958-021-05257-x
The Western Model of Settling the Afghan Conflict: The Rise and Fall of the 'Bonn Track' (2001-2014)
Autor:
Denis Borisov
Publikováno v:
Vestnik Tomskogo gosudarstvennogo universiteta. :79-87
The article discusses the evolution of the Western model of settling the Afghan conflict in the period from 2001 to 2014. On the basis of the case-study method, the authors analyse the international community's main goals and objectives in the settle
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::002820f66658214561e94f475df6a05d
https://doi.org/10.17223/15617793/466/9
https://doi.org/10.17223/15617793/466/9
This is the second book in the Donor-Acceptor Cyclopropanes series. It summarizes and analyzes for the first time the main intermediates formed from D-A cyclopropanes, and also systematizes the main ways of their further transformations. The main att
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f29780751eec03a57ab213836f30f2aa
https://doi.org/10.29003/m2659.978-5-317-06797-7
https://doi.org/10.29003/m2659.978-5-317-06797-7