Zobrazeno 1 - 5
of 5
pro vyhledávání: '"WALTRAUD LEDERLE"'
Publikováno v:
Árnadóttir, A S, Lederle, W & Möller, R G 2022, ' On Infinite, Cubic, Vertex-Transitive Graphs with Applications to Totally Disconnected, Locally Compact Groups ', Electronic Journal of Combinatorics, vol. 29, no. 4, P4.35 . https://doi.org/10.37236/10709
The Electronic Journal of Combinatorics, Vol. 29, no.4, p. np (2022)
The Electronic Journal of Combinatorics, Vol. 29, no.4, p. np (2022)
We study groups acting vertex-transitively and non-discretely on connected, cubic graphs (regular graphs of degree 3). Using ideas from Tutte's fundamental papers in 1947 and 1959, it is shown that if the action is edge-transitive, then the graph has
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5345a0eb5a727cfd323caf958109a5bc
https://doi.org/10.37236/10709
https://doi.org/10.37236/10709
Publikováno v:
Australian Mathematical Society. Journal, Vol. np, no.np, p. 1-33 (2022)
A connected, locally finite graph $\Gamma $ is a Cayley–Abels graph for a totally disconnected, locally compact group G if G acts vertex-transitively on $\Gamma $ with compact, open vertex stabilizers. Define the minimal degree of G as the minimal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::162e3c11bda5c1b367545f848ddab0ea
https://hdl.handle.net/2078.1/271739
https://hdl.handle.net/2078.1/271739
Autor:
Gil Goffer, Waltraud Lederle
Publikováno v:
International Journal of Algebra and Computation, Vol. 31, no.08, p. 1497-1545 (2021)
We determine when two almost automorphisms of a regular tree are conjugate. This is done by combining the classification of conjugacy classes in the automorphism group of a level-homogeneous tree by Gawron, Nekrashevych and Sushchansky and the soluti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::248954a504b075337a526ae3a6de66a2
Autor:
Salome Schumacher, Lorenz Halbeisen, Nir Lazarovich, Marc Lischka, Norbert Hungerbühler, Waltraud Lederle
Publikováno v:
Results in Mathematics, 74 (1)
We investigate the relationship between various choice principles and nth-root functions in rings. For example, we show that the Axiom of Choice is equivalent to the statement that every ring has a square-root function. Furthermore, we introduce a ch
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d8d9d6dc5ffd6bb49ad7c47ac7450295
Autor:
Waltraud Lederle
We give sufficient conditions for a subgroup of a tree almost automorphism group to be isomorphic to the topological full groups of a one-sided shift in the sense of Matui. As an application, we show that almost automorphism groups of trees obtained
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1a14b4e3f56f4fbb5eabb22119b27fc5
http://arxiv.org/abs/1701.03027
http://arxiv.org/abs/1701.03027