Results 141 to 150 of about 2,142 (221)

Irreducible Coxeter groups

, 2005
We prove that a non-spherical irreducible Coxeter group is (directly) indecomposable and that a non-spherical and non-affine Coxeter group is strongly indecomposable in the sense that all its finite index subgroups are (directly) indecomposable. We prove
Paris, Luis
core  

Crystallography of homophase twisted bilayers: coincidence, union lattices and space groups. [PDF]

Acta Crystallogr A Found Adv, 2023
Gratias D, Quiquandon M.
europepmc   +1 more source

Vitreous Carbon, Geometry and Topology: A Hollistic Approach. [PDF]

Nanomaterials (Basel), 2021
Mélinon P.
europepmc   +1 more source

Myosin assembly of smooth muscle: from ribbons and side polarity to a row polar helical model. [PDF]

J Muscle Res Cell Motil, 2022
Sobieszek IJ, Sobieszek A.
europepmc   +1 more source

On affine Weyl group elements of positive Coxeter type

We introduce a class of elements of the Iwahori-Weyl group of a reductive group that we call positive Coxeter elements. This class consists of elements which are linked to partial Coxeter elements in the finite Weyl group in a certain canonical way ...
Schremmer, Felix, Shimada, Ryosuke, Yu, Qingchao   +2 more
core  

On an open problem of Green and Losonczy: exact enumeration of freely braided permutations

Discrete Mathematics & Theoretical Computer Science, 2004
Recently, Green and Losonczy~ GL1,GL2 introduced freely braided permutation as a special class of restricted permutations has arisen in representation theory.
Toufik Mansour
doaj  

Reflection groups and coxeter groups

, 2014
honors thesisCollege of ScienceMathematicsMladen BestvivaIn this paper we give a survey of the theory of Coxeter Groups and Reflection groups. This survey will give an undergraduate reader a full picture of Coxeter Group theory, and will lean slightly ...
Bingham, Kouver
core  

Subword Complexes and Kalai's Conjecture on Reconstruction of Spheres. [PDF]

Discrete Comput Geom
Ceballos C, Doolittle J.
europepmc   +1 more source

Geometric realizations of abstract regular polyhedra with automorphism group H₃. [PDF]

Acta Crystallogr A Found Adv, 2020
Aranas JAL, Loyola ML.
europepmc   +1 more source

Dynamic Balance: A Thermodynamic Principle for the Emergence of the Golden Ratio in Open Non-Equilibrium Steady States. [PDF]

Entropy (Basel)
Ruiz A.
europepmc   +1 more source