Zobrazeno 1 - 10
of 1 643
pro vyhledávání: '"KOVALEV A. V."'
Autor:
Kalmykov, Sergei, Kovalev, Leonid V.
We obtain a sharp bound on the number of self-intersections of a closed planar curve with trigonometric parameterization. Moreover, we show that a generic curve of this form is normal in the sense of Whitney.
Externí odkaz:
http://arxiv.org/abs/2407.12572
Autor:
Kovalev, Fedor V., Miroshnichenko, Andrey E., Basharin, Alexey A., Toepfer, Hannes, Shadrivov, Ilya V.
The remarkable properties of toroidal metasurfaces, featuring ultrahigh-Q bound states in the continuum (BIC) resonances and nonradiating anapole modes, have garnered significant attention. The active manipulation of quasi-BIC resonance characteristi
Externí odkaz:
http://arxiv.org/abs/2403.06345
Autor:
Kovalev, Leonid V.
The existence of a median-type ternary operation on a metric space is known to have a number of implications for the geometry of the space. For such operations, if two of the three arguments coincide, they also coincide with the output of the operati
Externí odkaz:
http://arxiv.org/abs/2312.16146
Autor:
Kovalev, Fedor V., Shadrivov, Ilya V.
Publikováno v:
Opt. Mater. Express 14, 494-504 (2024)
We study parametric amplification of electromagnetic waves using metasurfaces. We design a variable capacitor-loaded metasurface that can amplify incident electromagnetic waves. We analyze various regimes of operation of the system and find that we c
Externí odkaz:
http://arxiv.org/abs/2308.11208
Autor:
Borodkin, Aleksei I., Kovalev, Anton V., Giudici, Massimo, Huyet, Guillaume, Ramdane, Abderrahim, Marconi, Mathias, Viktorov, Evgeny A.
Single-section quantum dash semiconductor lasers have attracted much attention as an integrated and simple platform for the generation of THz-wide and flat optical frequency combs in the telecom C-band. In this work, we present an experimental method
Externí odkaz:
http://arxiv.org/abs/2306.10811
Autor:
Kovalev, Leonid V.
Publikováno v:
Illinois J. Math., 68 (2024), no. 1, 167-187
The standard arithmetic measures of center, the mean and median, have natural topological counterparts which have been widely used in continuum theory. In the context of metric spaces it is natural to consider the Lipschitz continuous versions of the
Externí odkaz:
http://arxiv.org/abs/2208.03818
Autor:
Podyachev, Sergey N., Sudakova, Svetlana N., Shvedova, Anastasiya E., Deltsov, Ilya D., Masliy, Alexey N., Sh. Mambetova, Gulnaz, Syakaev, Victor V., Vatsouro, Ivan M., Gorbunov, Alexander N., Bezzubov, Stanislav I., Lapaev, Dmitry V., Kuznetsov, Andrey M., Kovalev, Vladimir V., Mustafina, Asiya R.
Publikováno v:
In Polyhedron 1 December 2024 264
Autor:
Chu, Zunxing, Gao, Juntao, Li, Qiang, Xia, Tian, Sun, Liping, Zhao, Hui, Kovalev, Ivan V., Guskov, Rostislav D., Popov, Mikhail P., Nemudry, A.P.
Publikováno v:
In Journal of Materials Science & Technology 20 March 2025 212:303-311
Autor:
Kalmykov, Sergei, Kovalev, Leonid V.
Publikováno v:
In Journal of Mathematical Analysis and Applications 15 March 2025 543(2) Part 1