Zobrazeno 1 - 10
of 5 508
pro vyhledávání: '"A. Karasev"'
Autor:
Karasev, A. Yu., Teretenkov, A. E.
In this work we develop an open quantum system view of the parametric approximation, which allows us to obtain systematic perturbative corrections to it. We consider the Jaynes-Cummings model with dissipation, assuming that the field is in the regime
Externí odkaz:
http://arxiv.org/abs/2410.03482
Autor:
Ershov, Egor, Panshin, Artyom, Karasev, Oleg, Korchagin, Sergey, Lev, Shepelev, Startsev, Alexandr, Vladimirov, Daniil, Zaychenkova, Ekaterina, Banić, Nikola, Iarchuk, Dmitrii, Efimova, Maria, Timofte, Radu, Terekhin, Arseniy, Yue, Shuwei, Liu, Yuyang, Wei, Minchen, Xu, Lu, Zhang, Chao, Wang, Yasi, Kınlı, Furkan, Yılmaz, Doğa, Özcan, Barış, Kıraç, Furkan, Liu, Shuai, Xiao, Jingyuan, Feng, Chaoyu, Wang, Hao, Shao, Guangqi, Zhang, Yuqian, Huang, Yibin, Luo, Wei, Wang, Liming, Wang, Xiaotao, Lei, Lei, Zini, Simone, Rota, Claudio, Buzzelli, Marco, Bianco, Simone, Schettini, Raimondo, Guo, Jin, Liu, Tianli, Wu, Mohao, Shao, Ben, Yang, Qirui, Li, Xianghui, Cheng, Qihua, Zhang, Fangpu, Xu, Zhiqiang, Yang, Jingyu, Yue, Huanjing
This paper presents a review of the NTIRE 2024 challenge on night photography rendering. The goal of the challenge was to find solutions that process raw camera images taken in nighttime conditions, and thereby produce a photo-quality output images i
Externí odkaz:
http://arxiv.org/abs/2406.13007
Autor:
Karasev, Roman, Skopenkov, Arkadiy
We present short proofs of two Tverberg-type theorems for cell complexes by S. Hasui, D. Kishimoto, M. Takeda, and M. Tsutaya. One of them states that for any prime power $r$, any simplicial sphere $X$ of dimension $(d+1)(r-1)-1$, and any continuous
Externí odkaz:
http://arxiv.org/abs/2405.05629
Autor:
Karasev, D. I., Semena, A. N., Mereminskiy, I. A., Lutovinov, A. A., Burenin, R. A., Krivonos, R. A., Sazonov, S. Yu., Arefiev, V. A., Buntov, M. V., Lapshov, I. Yu., Levin, V. V., Pavlinsky, M. N., Tkachenko, A. Yu., Shtykovsky, A. E.
Publikováno v:
Astronomy Letters, 49, 11, 655 (2023)
We present a catalog of sources detected by the Mikhail Pavlinsky ART-XC telescope onboard the SRG space observatory during the observations of the Galactic plane region near a longitude $l\simeq20$ deg (L20 field) in October 2019. The L20 field was
Externí odkaz:
http://arxiv.org/abs/2402.07290
We prove that for any Borel probability measure $\mu$ on $\mathbb R^n$ there exists a set $X\subset \mathbb R^n$ of $n+1$ points such that any $n$-variate quadratic polynomial $P$ that is nonnegative on $X$ (i.e. $P(x)\geq 0$, for every $x \in X$) sa
Externí odkaz:
http://arxiv.org/abs/2308.14060
Publikováno v:
Radiology Case Reports, Vol 19, Iss 10, Pp 4397-4402 (2024)
The article describes a case of successful treatment of cerebral aneurysm with a flow-diverting stent using the temporary assist device Comaneci (Rapid Medical, Yokneam, Israel). Clinical symptoms and methods of instrumental diagnostic for cerebral a
Externí odkaz:
https://doaj.org/article/ddd42d6d32c64f2f818e88edf7ddbfec
Autor:
Satybaldiev, Maksat, Mereminskiy, Ilya, Lutovinov, Alexander, Karasev, Dmitri, Semena, Andrei, Shtykovsky, Andrey
We present the results of the analysis of the SRG/ART-XC observation of the Supergiant Fast X-ray Transient IGR J16195-4545 performed on March 3, 2021. Six bright flares are present in the light curve, with no significant change in hardness occuring
Externí odkaz:
http://arxiv.org/abs/2307.08450
Autor:
Karasev, A. Yu., Teretenkov, A. E.
Publikováno v:
Lobachevskii J. Math., 44:6 (2023), 2051-2064
In this work we consider the master equations for composite open quantum systems. We provide purely algebraic formulae for terms of perturbation series defining such equations. We also give conditions under which the Bogolubov-van Hove limit exists a
Externí odkaz:
http://arxiv.org/abs/2304.08627
Autor:
Berezovik, Mark, Karasev, Roman
We state a conjecture about the volume of symplectically self-polar convex bodies and show that it is equivalent to Mahler's conjecture concerning the volume of a convex body and its Euclidean polar. We also establish lower and upper bounds for sympl
Externí odkaz:
http://arxiv.org/abs/2211.14630
Publikováno v:
Bulletin of the London Mathematical Society 56:3 (2024), 1014--1028
We prove a complex polynomial plank covering theorem for not necessarily homogeneous polynomials. As the consequence of this result, we extend the complex plank theorem of Ball to the case of planks that are not necessarily centrally symmetric and no
Externí odkaz:
http://arxiv.org/abs/2211.10886