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pro vyhledávání: '"Astashkin, A."'
We prove that both multiple Rademacher system and Rademacher chaos possess the property of random unconditional convergence in the space $L_\infty$. This fact combined with some intimate connections between $L_\infty$-norms of linear combinations of
Externí odkaz:
http://arxiv.org/abs/2412.20107
Autor:
Astashkin, Sergey V.
We study subspaces of Orlicz spaces $L_M$ spanned by independent copies $f_k$, $k=1,2,\dots$, of a function $f\in L_M$, $\int_0^1 f(t)\,dt=0$. Any such a subspace $H$ is isomorphic to some Orlicz sequence space $\ell_\psi$. In terms of dilations of t
Externí odkaz:
http://arxiv.org/abs/2407.14870
Autor:
Astashkin, Sergey V.
We prove that every measurable function $f:\,[0,a]\to\mathbb{C}$ such that $|f|=1$ a.e. on $[0,a]$ is an extreme point of the unit ball of the Lorentz space $\Lambda(\varphi)$ on $[0,a]$ whenever $\varphi$ is a not linear, strictly increasing, concav
Externí odkaz:
http://arxiv.org/abs/2407.10178
Autor:
Astashkin, Sergey V., Nilsson, Per G.
We investigate connections between upper/lower estimates for Banach lattices and the notion of relative s-decomposability, which has roots in interpolation theory. To get a characterization of relatively s-decomposable Banach lattices in terms of the
Externí odkaz:
http://arxiv.org/abs/2308.00112
Autor:
Astashkin, S. V., Lykov, K. V.
We study density estimates of an index set $\mathcal{A}$, under which unconditionality (or even a weaker property of the random unconditional divergence) of the corresponding Rademacher fractional chaos $\{r_{j_1}(t)\cdot r_{j_2}(t)\cdot\dots\cdot r_
Externí odkaz:
http://arxiv.org/abs/2305.11478
Autor:
R. S. Astashkin
Publikováno v:
Вестник Самарского университета: История, педагогика, филология, Vol 30, Iss 3, Pp 32-38 (2024)
The article attempts to consider the position of the Persian Safavid state on the question of using the territory of the Muscovy empire for the development of the European-Asian relations in the period of the XVI–XVII centuries with the use of the
Externí odkaz:
https://doaj.org/article/a100372ca4dd4be0a49ce44e4162226c
Autor:
Evgenii I. Astashkin, Maria G. Glezer
Publikováno v:
Alʹmanah Kliničeskoj Mediciny, Vol 52, Iss 2, Pp 95-103 (2024)
Varicose vein disease of the lower extremities is an inflammatory disorder with abnormal structure and functional activity of the venous valves, venous walls and cells, as well as with abnormal activity of the infiltrating leukocytes. The abnormally
Externí odkaz:
https://doaj.org/article/84c2cd2bc41b42f4a13e39b37ab48d5e
The dipyrrin-1,9-dione scaffold of heme metabolite propendyopent coordinates late transition metals (Co, Ni, Cu, and Zn) forming homoleptic, pseudo-tetrahedral complexes. Electrochemical and spectroscopic studies reveal that the monoanionic, bidentat
Externí odkaz:
http://hdl.handle.net/10150/621713
http://arizona.openrepository.com/arizona/handle/10150/621713
http://arizona.openrepository.com/arizona/handle/10150/621713
Autor:
Astashkin, S. V.
A subspace $H$ of a rearrangement invariant space $X$ on $[0,1]$ is strongly embedded in $X$ if, in $H$, convergence in $X$-norm is equivalent to convergence in measure. We obtain necessary and sufficient conditions on an Orlicz function $M$, under w
Externí odkaz:
http://arxiv.org/abs/2208.07215
Autor:
E. Podoliak, G. H. U. Lamm, E. Marin, A. V. Schellbach, D. A. Fedotov, A. Stetsenko, M. Asido, N. Maliar, G. Bourenkov, T. Balandin, C. Baeken, R. Astashkin, T. R. Schneider, A. Bateman, J. Wachtveitl, I. Schapiro, V. Busskamp, A. Guskov, V. Gordeliy, A. Alekseev, K. Kovalev
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-16 (2024)
Abstract Light-driven sodium pumps (NaRs) are unique ion-transporting microbial rhodopsins. The major group of NaRs is characterized by an NDQ motif and has two aspartic acid residues in the central region essential for sodium transport. Here we iden
Externí odkaz:
https://doaj.org/article/bbafc15b03ac4530a1702ccc8d42a86e