The many classical faces of quantum structures

C Heunen - Entropy, 2017 - mdpi.com
Interpretational problems with quantum mechanics can be phrased precisely by only talking
about empirically accessible information. This prompts a mathematical reformulation of …

Nondiscrete topological groups with many discrete subgroups

SA Morris, VN Obraztsov - Topology and its Applications, 1998 - Elsevier
It is shown that for each positive integer n, there exists a nondiscrete Hausdorff topological
group of cardinality ℵ n with no proper subgroup of the same cardinality and with each …

Characterization of locally compact groups by closed totally disconnected subgroups

B Kadri - Monatshefte für Mathematik, 2022 - Springer
Characterization of locally compact groups by closed totally disconnected subgroups |
Monatshefte für Mathematik Skip to main content SpringerLink Account Menu Find a journal …

Characterization of non-compact locally compact groups by cocompact subgroups

B Kadri - Journal of Group Theory, 2020 - degruyter.com
A subgroup H of a topological group G is called cocompact (or uniform) if the quotient space
G/H¯ is compact, where H¯ denotes the closure of H in G. The purpose of this paper is to …

The circle group

SA Morris - Bulletin of the Australian Mathematical Society, 1987 - cambridge.org
The circle group Page 1 BULL. AUSTRAL. MATH. SOC. 22BO5 VOL. 36 (1987) 279-282. THE
CIRCLE GROUP SIDNEY A. MORRIS We prove the following theorem: if G is a locally compact …

Characterization of topological groups by discrete cocompact subgroups

B Kadri - Archiv der Mathematik, 2021 - Springer
A subgroup H of a topological group G is called cocompact (or uniform) if the quotient space
G/HG/H¯ is compact, where HH¯ denotes the closure of H in G. The aim of this note is to …