Zobrazeno 1 - 10
of 37
pro vyhledávání: '"Aleksander Ivanov"'
Autor:
Aleksander Ivanov
Publikováno v:
Transactions of the Karelian Research Centre of the Russian Academy of Sciences, Iss 7 (2018)
The notion of an almost fully closed mapping, which generalizes the definition of a fully closed map, is introduced. It is shown that the composition of almost fully closed mappings of compacta with the first axiom of countability is also almost full
Externí odkaz:
https://doaj.org/article/49cfda56ffb34dceada78ab28dfa3763
Publikováno v:
Modern Stochastics: Theory and Applications, Vol 2, Iss 3, Pp 297-308 (2015)
We obtain limit theorems for extreme residuals in linear regression model in the case of minimax estimation of parameters.
Externí odkaz:
https://doaj.org/article/b0745b51f24c47dca37610059c528d16
Autor:
Oleg Bogopolski, Aleksander Ivanov
Publikováno v:
Canadian Mathematical Bulletin. :1-18
We study the following decision problem: given an exponential equation $a_1g_1^{x_1}a_2g_2^{x_2}\dots a_ng_n^{x_n}=1$ over a recursively presented group G, decide if it has a solution with all $x_i$ in $\mathbb {Z}$ . We construct a finitely presente
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4e0ead5577c88d58dcf202ca0b047a52
https://doi.org/10.4153/s0008439522000698
https://doi.org/10.4153/s0008439522000698
Autor:
Aleksander Ivanov, Karol Duda
Publikováno v:
Archive for Mathematical Logic. 61:891-902
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::59338d66733d92464a97abfb80e5054a
https://doi.org/10.1007/s00153-022-00819-5
https://doi.org/10.1007/s00153-022-00819-5
Autor:
Aleksander Ivanov
Publikováno v:
Algebra and Discrete Mathematics. 33:140-144
In this paper we show that under some mild assumptions two copies of a metric group can be freely amalgamated over any central subgroup so that the distance between them is sufficiently small.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7d414fe8018e37b047d94123300428e8
https://doi.org/10.12958/adm1557
https://doi.org/10.12958/adm1557
Autor:
Aleksander Ivanov
Publikováno v:
Mathematical Logic Quarterly. 67:206-225
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::036140f131b7cb72559944c96bf4c921
https://doi.org/10.1002/malq.202000050
https://doi.org/10.1002/malq.202000050
Autor:
Aleksander Ivanov
Publikováno v:
Mathematical Logic Quarterly. 67:43-58
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a8ade3d39cf5eaa513c2950fa088f693
https://doi.org/10.1002/malq.202000013
https://doi.org/10.1002/malq.202000013
Autor:
Aleksander Ivanov
Publikováno v:
Archive for Mathematical Logic. 60:477-494
We show that for every sofic chunk $E$ there is a bijective homomorphism $f: E_c \rightarrow E$, where $E_c$ is a chunk of the group of computable permutations of $\mathbb{N}$ so that the approximating morphisms of $E$ can be viewed as restrictions o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::80a9e53dc3b2dac3a1d743dcdfe86705
https://doi.org/10.1007/s00153-020-00757-0
https://doi.org/10.1007/s00153-020-00757-0
Autor:
Karol Duda, Aleksander Ivanov (Iwanow)
We prove a computable version of Hall's Harem Theorem and apply it to computable versions of Tarski's alternative theorem.
Comment: Overlap with Sections 6-8 of arXiv:1904.02640. To be published in International Journal of Algebra and Computatio
Comment: Overlap with Sections 6-8 of arXiv:1904.02640. To be published in International Journal of Algebra and Computatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2f44e20ff75606d19b27ec445354841f
http://arxiv.org/abs/2203.07730
http://arxiv.org/abs/2203.07730
Publikováno v:
COMPEL - The international journal for computation and mathematics in electrical and electronic engineering. 39:117-124
Purpose The purpose of this paper is obtaining the optimal parameters of induction heating and melting systems by use of the new programs ELectro-Thermal Analysis (ELTA) 8.0 and Induction Crucible Furnace (ICF) to improve a quality of final products.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ffd7f9316e99c87dc4808da9f6f49159
https://doi.org/10.1108/compel-05-2019-0219
https://doi.org/10.1108/compel-05-2019-0219