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of 271
pro vyhledávání: '"Medvedev, Sergey P."'
We propose a high precision algorithm for solving the Gelfand-Levitan-Marchenko equation. The algorithm is based on the block version of the Toeplitz Inner-Bordering algorithm of Levinson's type. To approximate integrals, we use the high-precision on
Externí odkaz:
http://arxiv.org/abs/2405.00529
Autor:
Medvedev, Sergey
The main result is the following. Let $f \colon X \rightarrow Y$ be a continuous mapping of a completely Baire space $X$ onto a hereditary weakly Preiss-Simon regular space $Y$ such that the image of every open subset of $X$ is a resolvable set in $Y
Externí odkaz:
http://arxiv.org/abs/2208.05538
Autor:
Dyrkheeva, Nadezhda S., Zakharenko, Alexandra L., Malakhova, Anastasia A., Okorokova, Larisa S., Shtokalo, Dmitry N., Medvedev, Sergey P., Tupikin, Alexey A., Kabilov, Marsel R., Lavrik, Olga I.
Publikováno v:
In BBA - General Subjects July 2024 1868(7)
We propose a new method for solving the Gelfand-Levitan-Marchenko equation (GLME) based on the block version of the Toeplitz Inner-Bordering (TIB) with an arbitrary point to start the calculation. This makes it possible to find solutions of the GLME
Externí odkaz:
http://arxiv.org/abs/2111.12537
We analyze a family of fourth-order non-linear diffusion models corresponding to local approximations of 4-wave kinetic equations of weak wave turbulence. We focus on a class of parameters for which a dual cascade behaviour is expected with an infrar
Externí odkaz:
http://arxiv.org/abs/2107.09594
Autor:
Pei, Cuiying, Shi, Wujun, Zhao, Yi, Gao, Lingling, Gao, Jiacheng, Li, Yiwei, Zhu, Haiyin, Zhang, Qing, Yu, Na, Li, Changhua, Cao, Weizheng, Medvedev, Sergey A., Felser, Claudia, Yan, Binghai, Liu, Zhongkai, Chen, Yulin, Wang, Zhijun, Qi, Yanpeng
A search for the single material system that simultaneously exhibits topological phase and intrinsic superconductivity has been largely limited, although such a system is far more favorable especially for the quantum device applications. Except artif
Externí odkaz:
http://arxiv.org/abs/2105.13222
Based on the generalized Cayley transform, a family of conservative one-step schemes of the sixth order of accuracy for the Zakharov-Shabat system is constructed. The exponential integrator is a special case. Schemes based on rational approximation a
Externí odkaz:
http://arxiv.org/abs/2011.11380
Autor:
Mu, Qing-Ge, Nenno, Dennis, Qi, Yan-Peng, Fan, Feng-Ren, Pei, Cuiying, ElGhazali, Moaz, Gooth, Johannes, Felser, Claudia, Narang, Prineha, Medvedev, Sergey
Publikováno v:
Phys. Rev. Materials 5, 084201 (2021)
A Weyl semimetal with strong electron-phonon interaction can show axionic coupling in its insulator state at low temperatures, owing to the formation of a charge density wave (CDW). Such a CDW emerges in the linear chain compound Weyl semimetal Ta$_2
Externí odkaz:
http://arxiv.org/abs/2010.07345
We propose a new method for finding discrete eigenvalues for the direct Zakharov-Shabat problem, based on moving in the complex plane along the argument jumps of the function $a(\zeta)$, the localization of which does not require great accuracy. It a
Externí odkaz:
http://arxiv.org/abs/2003.02215
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