Zobrazeno 1 - 10
of 1 575
pro vyhledávání: '"Ivanov G"'
Publikováno v:
E3S Web of Conferences, Vol 549, p 08010 (2024)
The concept of a quasi-absolutely continuous function on a closed interval of functions is introduced and a condition for the compactness of a set in the space of quasi-absolutely continuous functions on a closed interval is obtained.
Externí odkaz:
https://doaj.org/article/8569a51bb44e49d1a37bc6f36cf850cd
Autor:
Ivanov, G., Naszodi, M.
We obtain three Helly-type results. First, we establish a Quantitative Colorful Helly-type theorem with the optimal Helly number \(2d\) concerning the diameter of the intersection of a family of convex bodies. Second, we prove a Quantitative Helly-ty
Externí odkaz:
http://arxiv.org/abs/2409.15048
Autor:
Ivanov, G.
We study the ``no-dimensional'' analogue of Helly's theorem in Banach spaces. Specifically, we obtain the following no-dimensional Helly-type results for uniformly convex Banach spaces: Helly's theorem, fractional Helly's theorem, colorful Helly's th
Externí odkaz:
http://arxiv.org/abs/2409.05744
Publikováno v:
E3S Web of Conferences, Vol 458, p 09011 (2023)
Approaches to estimating for the number of periodic and almost periodic solutions of ordinary differential equations are considered. Conditions that allow determinating both the upper and lower bounds for these solutions are found. The existence of p
Externí odkaz:
https://doaj.org/article/312c30a8d86743df9ddf065a96131eb5
Autor:
Ivanov G. V., Shchegol'kova A. A.
Publikováno v:
Vestnik MGTU, Vol 19, Iss 2, Pp 414-418 (2016)
The paper analyzes some methodological approaches to counter the influence of anti-Russian sanctions on dynamics of economic development of both Russia and the Arctic. The difficulty of import substitution programme implementation in the military-ind
Externí odkaz:
https://doaj.org/article/a4463057406e4bd281bb279885e8579b
Publikováno v:
E3S Web of Conferences, Vol 224, p 04038 (2020)
The study is devoted to the development of approach to comprehensive assessment of the regional agro-food industry development problems. This task was solved using the methods of expert assessment and statistical analysis of their results. We have su
Externí odkaz:
https://doaj.org/article/ac614f749d314649819672c3af118bf9
Autor:
Ivanov G. V.
Publikováno v:
Vestnik MGTU, Vol 18, Iss 3, Pp 401-406 (2015)
The paper contains the analysis of actual problems of national security of Russia in the Arctic. The author has come to the conclusion that the threats of military security of the Russian Federation in the Arctic region are of rising character and th
Externí odkaz:
https://doaj.org/article/1d5505a3f6e94b2e9bf279b3b6402740
Autor:
Ivanov, G. M.
We study the 'no-dimension' analogue of Carath{\'e}odory's theorem in Banach spaces. We prove such a result together with its colorful version for uniformly smooth Banach spaces. It follows that uniform smoothness leads to a greedy de-randomization o
Externí odkaz:
http://arxiv.org/abs/1904.06729
Autor:
Ivanov, G.
We study properties of the volume of projections of the $n$-dimensional cross-polytope $\crosp^n = \{ x \in \R^n \mid |x_1| + \dots + |x_n| \leqslant 1\}.$ We prove that the projection of $\crosp^n$ onto a $k$-dimensional coordinate subspace has the
Externí odkaz:
http://arxiv.org/abs/1808.09165
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