Sökning: "braid group"

Hittade 2 avhandlingar innehållade orden braid group.

1. 1. Anyons and antiferromagnets : two two-dimensional topics

   Författare :Torbjörn Einarsson; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; antiferromagnet; two dimension; anyons; fractional statistics; Heisenberg model; torus; nonlinear sigma model; multi-component wavefuntions; spin; Néel phase; disorder; braid group;

   Sammanfattning : .... LÄS MER

3. 2. Combinatorics and topology related to involutions in Coxeter groups

   Författare :Mikael Hansson; Axel Hultman; Jan Snellman; Nathan Reading; Linköpings universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

   Sammanfattning : This dissertation consists of three papers in combinatorial Coxeter group theory.A Coxeter group is a group W generated by a set S, where all relations can be derived from the relations s2 = e for all s ? S, and (ss′)m(s,s′) = e for some pairs of generators s ≠ s′ in S, where e ? W is the identity element and m(s, s′) is an integer satisfying that m(s, s′) = m(s′, s) ≥ 2. LÄS MER