Zobrazeno 1 - 10
of 10 487
pro vyhledávání: '"Polishchuk A"'
Modeling the motion of ultracold neutrons (UCNs) is crucial for assessing their losses, accurately measuring their lifetime, and describing other experiments. In material traps, it is necessary to account not only for specular but also for diffuse el
Externí odkaz:
http://arxiv.org/abs/2412.05106
Autor:
Gatti, G., Tancogne-Dejean, N., Hübener, H., De Giovannini, U., Dai, J., Polishchuk, S., Bugnon, Ph., Frassetto, F., Poletto, L., Chergui, M., Grioni, M., Rubio, A., Puppin, M., Crepaldi, A.
Chirality in tellurium derives from a Peierls distortion driven by strong electron-phonon coupling, making this material a unique candidate for observing a light-induced topological phase transition. By using time- and angle-resolved photoelectron sp
Externí odkaz:
http://arxiv.org/abs/2411.13954
We determine the convergence regions of certain local integrals on the moduli spaces of curves in neighborhoods of fixed stable curves in terms of the combinatorics of the corresponding graphs.
Comment: 7 pages
Comment: 7 pages
Externí odkaz:
http://arxiv.org/abs/2409.10005
Autor:
Kazhdan, David, Polishchuk, Alexander
Let $C$ be a curve over a non-archimedean local field of characteristic zero. We formulate algebro-geometric statements that imply boundedness of functions on the moduli space of stable bundles of rank $2$ and fixed odd degree determinant over $C$, c
Externí odkaz:
http://arxiv.org/abs/2408.10551
We study the behavior of the superperiod map near the boundary of the moduli space of stable supercurves and prove that it is similar to the behavior of periods of classical curves. We consider two applications to the geometry of this moduli space in
Externí odkaz:
http://arxiv.org/abs/2408.11136
Autor:
Polishchuk, Alexander, Rains, Eric
We prove that for every relatively prime pair of integers $(d,r)$ with $r>0$, there exists an exceptional pair $({\mathcal O},V)$ on any del Pezzo surface of degree 4, such that $V$ is a bundle of rank $r$ and degree $d$. As an application, we prove
Externí odkaz:
http://arxiv.org/abs/2407.19307
Autor:
Grigoriev, Pavel D., Kochev, Vladislav D., Tsyplukhin, Victor A., Dyugaev, Alexander M., Polishchuk, Ilya Ya.
The most accurate neutron lifetime measurements now use the material or magnetic traps of ultracold neutrons (UCN). The precision of these experiments is determined by the accuracy of estimating the neutron loss rate. In material UCN traps the main s
Externí odkaz:
http://arxiv.org/abs/2407.03207
Autor:
Polishchuk Andrii S.
Publikováno v:
Bìznes Inform, Vol 12, Iss 515, Pp 133-141 (2020)
The article is aimed at determining trends in urbanization and globalization to take into account their influence in the process of managing the development of regions of Ukraine. It is defined that the level of urbanization in Ukraine over the past
Externí odkaz:
https://doaj.org/article/84c3e8086d8645f4bb0b0b8c9dc30116
Autor:
Polishchuk, Alexander, Rains, Eric
We consider the ${\mathbb Z}^n$-graded algebra of global sections of line bundles generated by the standard line bundles $L_1,\ldots,L_n$ on $\bar{M}_{0,n}$. We find a simple presentation of this algebra by generators and quadratic relations. As an a
Externí odkaz:
http://arxiv.org/abs/2405.21062
Magnetic quantum oscillations (MQO) are traditionally applied to investigate the electronic structure of metals. In layered quasi-two-dimensional (Q2D) materials the MQO have several qualitative features giving additional useful information, provided
Externí odkaz:
http://arxiv.org/abs/2405.10174