Results 1 to 10 of about 367 (86)
On Efficient Presentations of the Groups PSL $(2, m)$ [PDF]
We exhibit presentations of the Von Dyck groups $D(2, 3, m), \ m\ge 3$, in terms of two generators of order $m$ satisfying three relations, one of which is Artin's braid relation. By dropping the relation which fixes the order of the generators we obtain
Orlin Stoytchev
doaj +1 more source
Coherent Presentations of Monoidal Categories [PDF]
Presentations of categories are a well-known algebraic tool to provide descriptions of categories by means of generators, for objects and morphisms, and relations on morphisms.
Pierre-Louis Curien, Samuel Mimram
doaj +1 more source
PRESENTATIONS OF AFFINE KAC–MOODY GROUPS
How many generators and relations does $\text{SL}\,_{n}(\mathbb{F}_{q}[t,t^{-1}])$ need? In this paper we exhibit its explicit presentation with $9$ generators and $44$ relations. We investigate presentations of affine Kac–Moody groups over finite fields.
INNA CAPDEBOSCQ +2 more
doaj +1 more source
Presentations of topological full groups by generators and relations
Let \((\Omega,T)\) be a minimal subshift over a finite alphabet: \(\Omega\) is a closed subset of \(X^{\mathbb Z}\) for a finite alphabet \(X\), invariant under the shift map \(T\), and minimal under these conditions. The associated \textit{topological full group} is the group of self-homeomorphisms of \(\Omega\) that are piecewise powers of \(T\).
Grigorchuk, Rostislav, Medynets, Kostya
openaire +3 more sources
Presentations of Topological Full Groups by Generators and Relations
We describe generators and defining relations for the commutator subgroup of topological full groups of minimal subshifts. We show that the word problem in a topological full group is solvable if and only if the language of the underlying subshift is recursive.
Grigorchuk, Rostislav +1 more
openaire +2 more sources
Digraph Groups Without Leaf Having An Arc Count One Greater Than Their Vertex
This paper investigates a particular class of digraph groups that are defined by non-empty balanced presentations. Each relation is expressed in the form R(x,y), where x and y are distinct generators, and R(⋅,⋅) is based on a fixed cyclically reduced ...
Mehmet Sefa Cihan
doaj +1 more source
π 1 of Miranda moduli spaces of elliptic surfaces. [PDF]
Lönne M.
europepmc +1 more source
Presentations for vertex-transitive graphs. [PDF]
Georgakopoulos A, Wendland A.
europepmc +1 more source
Brauer and partition diagram models for phylogenetic trees and forests. [PDF]
Francis A, Jarvis PD.
europepmc +1 more source

