Zobrazeno 1 - 10
of 158
pro vyhledávání: '"KWIATKOWSKA, ALEKSANDRA"'
We continue the study of projective Fra\"iss\'e limits developed by Irwin-Solecki and Panagiotopoulos-Solecki by investigating families of epimorphisms between finite trees and finite rooted trees. Ideas of monotone, confluent, and light mappings fro
Externí odkaz:
http://arxiv.org/abs/2312.16915
We continue the study of projective Fra\"{i}ss\'{e} limits of trees initiated by Charatonik and Roe and we construct many generalized Wa\.{z}ewski dendrites as the topological realization of a projective Fra\"{i}ss\'{e} limit of families of finite tr
Externí odkaz:
http://arxiv.org/abs/2210.06899
We investigate the projective Fra\"{\i}ss\'e family of finite connected graphs with confluent epimorphisms and the continuum obtained as the topological realization of its projective Fra\"{\i}ss\'e limit. This continuum was unknown before. We prove t
Externí odkaz:
http://arxiv.org/abs/2206.12400
Autor:
KNECHT, Zdzisław1 zdzislaw.knecht@awl.edu.pl, RZEPECKA-KWIATKOWSKA, Aleksandra1 aleksandra.rzepecka-kwiatkowska@awl.edu.pl
Publikováno v:
Scientific Papers of Silesian University of Technology. Organization & Management / Zeszyty Naukowe Politechniki Slaskiej. Seria Organizacji i Zarzadzanie. 2024, Issue 203, p115-126. 12p.
We show that the conjugacy class of every pair of automoprhisms of the random poset is meager. This answers a question of Truss; see also Kuske-Truss. EDIT. Work in progress, at the moment there is a gap in the proof of Theorem 2.
Comment: Work
Comment: Work
Externí odkaz:
http://arxiv.org/abs/2012.04376
Publikováno v:
Journal of Algebra, Volume 580, 2021, Pages 43-62
We define the notions of a free fusion of structures and a weakly stationary independence relation. We apply these notions to prove simplicity for the automorphism groups of order and tournament expansions of homogeneous structures like the bounded U
Externí odkaz:
http://arxiv.org/abs/1908.05249
This article is a contribution to the following problem: does there exist a Polish non-archimedean group (equivalently: automorphism group of a Fraisse limit) that is extremely amenable, and has ample generics. As Fraisse limits whose automorphism gr
Externí odkaz:
http://arxiv.org/abs/1903.00936
We prove that for a number of ultrahomogeneous structures $M$, including those with the free amalgamation property, the powers of the automorphism group ${\rm{Aut}}(M)^n$, $n=1,2,\ldots$, and the group $L_0({\rm{ Aut}}(M))$ of measurable functions wi
Externí odkaz:
http://arxiv.org/abs/1808.08873
Autor:
Kwiatkowska, Aleksandra
Publikováno v:
J. symb. log. 83 (2018) 1618-1632
We study universal minimal flows of the homeomorphism groups of generalized Wa\.zewski dendrites $W_P$, $P\subset\{3,4,\ldots,\omega\}$. If $P$ is finite, we prove that the universal minimal flow of of the homeomorphism group $H(W_P)$ is metrizable a
Externí odkaz:
http://arxiv.org/abs/1711.07869
We compute the universal minimal flow of the homeomorphism group of the Lelek fan -- a one-dimensional tree-like continuum with many symmetries.
Externí odkaz:
http://arxiv.org/abs/1706.09154