Zobrazeno 1 - 10
of 9 264
pro vyhledávání: '"P Medvedev"'
We consider the overfitting behavior of minimum norm interpolating solutions of Gaussian kernel ridge regression (i.e. kernel ridgeless regression), when the bandwidth or input dimension varies with the sample size. For fixed dimensions, we show that
Externí odkaz:
http://arxiv.org/abs/2409.03891
Autor:
Kolbin, A. I., Karpova, A. V., Suslikov, M. V., Bikmaev, I. F., Gilfanov, M. R., Khamitov, I. M., Shibanov, Yu. A., Zyuzin, D. A., Beskin, G. M., Plokhotnichenko, V. L., Gutaev, A. G., Karpov, S. V., Lyapsina, N. V., Medvedev, P. S., Sunyaev, R. A., Kirichenko, A. Yu., Gorbachev, M. A., Irtuganov, E. N., Gumerov, R. I., Sakhibullin, N. A., Shablovinskaya, E. S., Malygin, E. A.
SRGe J194401.8+284452 is the brightest point-like X-ray object within the position uncertainty ellipse of an unidentified $\gamma$-ray source 4FGL J1943.9+2841. We performed multi-wavelength spectral and photometric studies to determine its nature an
Externí odkaz:
http://arxiv.org/abs/2408.14136
Autor:
Ozhiganov, Maksim, Medvedev, Mikhail, Karteyeva, Varvara, Nakibov, Ruslan, Sapunova, Uliana, Krushinsky, Vadim, Stepanova, Ksenia, Tryastsina, Anastasia, Gorkovenko, Aleksandr, Fedoseev, Gleb, Vasyunin, Anton
HCN molecules serve as an important tracer for chemical evolution of elemental nitrogen in the regions of star and planet formation. This is largely explained by the fact that N atoms and N$_2$ molecules are poorly accessible for the observation in t
Externí odkaz:
http://arxiv.org/abs/2408.08166
Every continuous map between two compact Riemannian manifolds is homotopic to a harmonic map (HM). We show that a similar situation holds for continuous maps between a post-critically finite (p.c.f.) fractal and a circle. Specifically, we provide a g
Externí odkaz:
http://arxiv.org/abs/2407.16817
Autor:
Medvedev, Mikhail V., Loeb, Abraham
Dark matter particles were suggested to have an electric charge smaller than the elementary charge unit $e$. The behavior of such a medium is similar to a collisionless plasma. In this paper, we set new stringent constraints on the charge and mass of
Externí odkaz:
http://arxiv.org/abs/2406.15750
Autor:
Nikishev, N., Medvedev, N.
Although polymers are widely used in laser-irradiation research, their microscopic response to high-intensity ultrafast XUV or X-ray irradiation is still largely unknown. Here we comparatively study homologous series of alkenes. XTANT-3 hybrid simula
Externí odkaz:
http://arxiv.org/abs/2406.12484
Autor:
Karpikova, Polina, Spiridonov, Andrei, Vorontsova, Anna, Yaschenko, Anastasia, Radionova, Ekaterina, Medvedev, Igor, Limonov, Alexander
Self-portraits captured from a short distance might look unnatural or even unattractive due to heavy distortions making facial features malformed, and ill-placed head poses. In this paper, we propose SUPER, a novel method of eliminating distortions a
Externí odkaz:
http://arxiv.org/abs/2406.12700
Autor:
Zainutdinov, D. I., Borodin, V. A., Gorbunov, S. A., Medvedev, N., Rymzhanov, R. A., Sorokin, M. V., Voronkov, R. A., Volkov, A. E.
At ambient conditions, SiC is known to be resistant to irradiation with swift heavy ions (SHI) decelerating in the electronic stopping regime. However, there is no experimental data on the SiC irradiation at elevated temperatures. To investigate this
Externí odkaz:
http://arxiv.org/abs/2406.07963
Autor:
Medvedev, Nikita, Volkov, Alexander E.
Publikováno v:
Phys. Rev. E 110, 024142 (2024)
Ultrafast laser radiation or beams of fast charged particles primarily excite the electronic system of a solid driving the target transiently out of thermal equilibrium. Apart from the nonequilibrium between the electrons and atoms, each subsystem ma
Externí odkaz:
http://arxiv.org/abs/2406.05718
Autor:
Medvedev, V., Zhuzhoma, E.
We prove that $n$-sphere $\mathbb{S}^n$, $n\geq 2$, admits structurally stable diffeomorphisms $\mathbb{S}^n\to\mathbb{S}^n$ with non-orientable expanding attractors of any topological dimension $d\in\{1,\ldots,[\frac{n}{2}]\}$ where $[x]$ is an inte
Externí odkaz:
http://arxiv.org/abs/2405.14196