Zobrazeno 1 - 10
of 963
pro vyhledávání: '"Vishnyakova, P."'
Autor:
Vishnyakova, Elizaveta
We define and study a multiplicity free covering of a graded manifold. As an application of our research we give a new conceptual proof of the theorem about equivalence of categories of graded manifolds and symmetric $n$-fold vector bundles.
Com
Com
Externí odkaz:
http://arxiv.org/abs/2409.02211
Elementary, but very useful lemma due to Biernacki and Krzy\.{z} (1955) asserts that the ratio of two power series inherits monotonicity from that of the sequence of ratios of their corresponding coefficients. Over the last two decades it has been re
Externí odkaz:
http://arxiv.org/abs/2408.01755
For a given real polynomial $p$ we study the possible number of real roots of a differential polynomial $H_{\varkappa}[p](x) = \varkappa\left(p'(x)\right)^2-p(x)p''(x), \varkappa \in \mathbb{R}.$ In the special case when all real zeros of the polynom
Externí odkaz:
http://arxiv.org/abs/2406.00686
In this paper, we prove a number of results providing either necessary or sufficient conditions guaranteeing that the number of real roots of real polynomials of a given degree is either less or greater than a given number. We also provide counterexa
Externí odkaz:
http://arxiv.org/abs/2403.12200
Autor:
Katkova, Olga, Vishnyakova, Anna
A real sequence $(b_k)_{k=0}^\infty$ is called totally positive if all minors of the infinite matrix $ \left\| b_{j-i} \right\|_{i, j =0}^\infty$ are nonnegative (here $b_k=0$ for $k<0$). In this paper, we investigate the problem of description of th
Externí odkaz:
http://arxiv.org/abs/2402.05017
We study the growth of the resolvent of a Toeplitz operator $T_b$, defined on the Hardy space, in terms of the distance to its spectrum $\sigma(T_b)$. We are primarily interested in the case when the symbol $b$ is a Laurent polynomial (\emph{i.e., }
Externí odkaz:
http://arxiv.org/abs/2401.12095
Autor:
Grotti, J., Nosske, I., Koller, S. B., Herbers, S., Denker, H., Timmen, L., Vishnyakova, G., Grosche, G., Waterholter, T., Kuhl, A., Koke, S., Benkler, E., Giunta, M., Maisenbacher, L., Matveev, A., Dörscher, S., Schwarz, R., Al-Masoudi, A., Hänsch, T. W., Udem, T. H., Holzwarth, R., Lisdat, C.
We have measured the geopotential difference between two locations separated by 457 km by comparison of two optical lattice clocks via an interferometric fiber link, utilizing the gravitational redshift of the clock transition frequency. The $^{87}$S
Externí odkaz:
http://arxiv.org/abs/2309.14953
Autor:
Anastassiya Perfilyeva, Kira Bespalova, Yelena Kuzovleva, Rustam Mussabayev, Мamura Begmanova, Almira Amirgalyeva, Olga Vishnyakova, Inna Nazarenko, Assel Zhaxsylykova, Arailym Yerzhan, Yuliya Perfilyeva, Tatyana Dzhaembaeva, Anna Khamchukova, Konstantin Plakhov, Aibyn Torekhanov, Leyla Djansugurova, Gulnur Zhunussova, Bakhytzhan Bekmanov
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-16 (2024)
Abstract The Kazakh Tobet is an indigenous Kazakh dog breed that has been used to guard livestock since ancient times. To understand the genetic structure and phylogenetic relationship of the Kazakh Tobet breed with other herding and livestock guardi
Externí odkaz:
https://doaj.org/article/237a7c9455e14dc8bc9a846b48b99a88
Publikováno v:
Открытое образование (Москва), Vol 28, Iss 4, Pp 4-12 (2024)
The article is devoted to analysis of the experience of organizing project work of schoolchildren in the field of information technologies on the basis of a higher educational institution.The peculiarities of the educational process organization, app
Externí odkaz:
https://doaj.org/article/27a72bf8dfbc49958e889833902e8af6
Autor:
Gulishe S. Muzafarova, Marina V. Vishnyakova, Alexander S. Abramenko, Vladimir A. Kuzmichev, Vladimir V. Gatsutsyn
Publikováno v:
Digital Diagnostics, Vol 5, Iss 2, Pp 167-177 (2024)
BACKGROUND: Magnetic resonance imaging is more often used to confirm the presence of pectus excavatum and assess compression changes in the heart at this level. AIM: To evaluate pectus excavatum preoperatively according to magnetic resonance imagi
Externí odkaz:
https://doaj.org/article/092e2b79d4884ce9bb0588d83a5144d2