Zobrazeno 1 - 10
of 3 162
pro vyhledávání: '"Cardinality of the continuum"'
A topological space $X$ is called almost discretely Lindel\"of if every discrete set $D \subset X$ is included in a Lindel\"of subspace of $X$. We say that the space $X$ is {\em $\mu$-sequential} if for every non-closed set $A \subset X$ there is a s
Externí odkaz:
http://arxiv.org/abs/1612.06651
Publikováno v:
In Topology and its Applications 1 June 2018 241:145-149
Autor:
V.S. Atabekyan
Publikováno v:
Proceedings of the YSU A: Physical and Mathematical Sciences. 54:81-86
In this paper we prove that the set of non-isomorphic 2-generated $C^*$-simple relatively free groups has the cardinality of the continuum. A non-trivial identity is satisfied in any (not absolutely free) relatively free group. Hence, they cannot con
Akademický článek
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Autor:
Ayal Sharon
Publikováno v:
SSRN Electronic Journal.
According Georg Cantor's "Cardinality of the Continuum", as proved in Euclidean geometry, any line segment (not inclusive of its two end points) has as many points as an entire line. This theorem is an underlying assumption of the "Continuum Hypothes
Autor:
Gogi Pantsulaia
Publikováno v:
International Journal of Advanced Research in Mathematics. 5:8-22
It is introduced a certain approach for equipment of sets with cardinality of the continuum by structures of Polish groups with two-sided (left or right) invariant Haar measures. By using this approach we answer positively Maleki’s certain question
Autor:
V. V. Makarov, A. V. Makarov
Publikováno v:
Moscow University Mathematics Bulletin. 74:174-174
It is proved that the set of closed classes containing some minimal classes in the partially ordered set $${\cal L}_2^3$$ of closed classes in the three-valued logic that can be homomorphically mapped onto the two-valued logic has the cardinality of
Autor:
Ayal Sharon
Publikováno v:
SSRN Electronic Journal.
Autor:
Alexander Magazinov
Publikováno v:
Proceedings of the Steklov Institute of Mathematics. 275:78-89
It is proved that the family of bi-Lipschitz classes of Delone sets in Euclidean space of dimension at least 2 has the cardinality of the continuum.
Publikováno v:
Topology and its Applications. 241:145-149
A topological space X is called almost discretely Lindelof if every discrete set D ⊂ X is included in a Lindelof subspace of X . We say that the space X is μ-sequential if for every non-closed set A ⊂ X there is a sequence of length ≤ μ in A