Results 21 to 30 of about 74,629 (244)

On the number of subgroups of a given exponent in a finite abelian group [PDF]

open access: yes, 2017
This paper deals with the number of subgroups of a given exponent in a finite abelian group. Explicit formulas are obtained in the case of rank two and rank three abelian groups.
Tóth, László, Tărnăuceanu, Marius
core   +2 more sources

Dimension and rank for mapping class groups [PDF]

open access: yes, 2007
We study the large scale geometry of the mapping class group, MCG. Our main result is that for any asymptotic cone of MCG, the maximal dimension of locally compact subsets coincides with the maximal rank of free abelian subgroups of MCG.
Behrstock, Jason A., Minsky, Yair N.
core   +2 more sources

A Generalization of Final Rank of Primary Abelian Groups [PDF]

open access: yesCanadian Journal of Mathematics, 1970
Let G be a p-primary Abelian group. Recall that the final rank of G is infn∈ω{r(pnG)}, where r(pnG) is the rank of pnG and ω is the first limit ordinal.
Cutler, Doyle O., Cubois, Paul F.
openaire   +1 more source

Non-Abelian gauged fracton matter field theory: Sigma models, superfluids, and vortices

open access: yesPhysical Review Research, 2020
By gauging a higher-moment polynomial degree global symmetry and a discrete charge conjugation (i.e., particle-hole) symmetry coupled to matter fields (two symmetries mutually noncommutative), we derive a class of higher-rank tensor non-Abelian gauge ...
Juven Wang, Shing-Tung Yau
doaj   +1 more source

Faithful Abelian Groups of Infinite Rank [PDF]

open access: yesProceedings of the American Mathematical Society, 1988
Let B B be a subgroup of an abelian group G G such that G / B G/B is isomorphic to a direct sum of copies of an abelian group A A . For B B to be a direct summand of G G , it is necessary that G ...
openaire   +1 more source

On groups and counter automata [PDF]

open access: yes, 2006
We study finitely generated groups whose word problems are accepted by counter automata. We show that a group has word problem accepted by a blind n-counter automaton in the sense of Greibach if and only if it is virtually free abelian of rank n; this ...
Dixon J. D.   +8 more
core   +2 more sources

A Note on Additive Groups of Some Specific Torsion-Free Rings of Rank Three and Mixed Associative Rings

open access: yesDiscussiones Mathematicae - General Algebra and Applications, 2017
It is studied how rank two pure subgroups of a torsion-free Abelian group of rank three influences its structure and type set. In particular, the criterion for such a subgroup B to be a direct summand of a torsion-free Abelian group of rank three with ...
Najafizadeh Alireza, Woronowicz Mateusz
doaj   +1 more source

Locally Quasi-Convex Compatible Topologies on a Topological Group

open access: yesAxioms, 2015
For a locally quasi-convex topological abelian group (G,τ), we study the poset \(\mathscr{C}(G,τ)\) of all locally quasi-convex topologies on (G) that are compatible with (τ) (i.e., have the same dual as (G,τ) ordered by inclusion.
Lydia Außenhofer   +2 more
doaj   +1 more source

Automatic Structures: Richness and Limitations [PDF]

open access: yesLogical Methods in Computer Science, 2007
We study the existence of automatic presentations for various algebraic structures. An automatic presentation of a structure is a description of the universe of the structure by a regular set of words, and the interpretation of the relations by ...
Bakhadyr Khoussainov   +3 more
doaj   +1 more source

A Chern-Simons theory for dipole symmetry

open access: yesSciPost Physics, 2023
We present effective field theories for dipole symmetric topological matters that can be described by the Chern-Simons theory. Unlike most studies using higher-rank gauge theory, we develop a framework with both $U(1)$ and dipole gauge fields.
Xiaoyang Huang
doaj   +1 more source

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