Results 31 to 40 of about 15,709 (204)

PT-symmetric deformations of Calogero models [PDF]

open access: yes, 2008
We demonstrate that Coxeter groups allow for complex PT-symmetric deformations across the boundaries of all Weyl chambers. We compute the explicit deformations for the A2 and G2-Coxeter group and apply these constructions to Calogero–Moser–Sutherland ...
Andreas Fring   +18 more
core   +5 more sources

Electrocatalytic CN Coupling: Advances in Urea Synthesis and Opportunities for Alternative Products. [PDF]

open access: yesChemSusChem
This review explores electrocatalytic urea synthesis via carbon–nitrogen (CN) coupling from CO2 and nitrogen species, specifically nitrate, nitrite, nitric oxide, and nitrogen gas. It discusses recent discoveries in catalyst design, reaction pathways, and detection methods. Future outlooks on industrial applications, alternative CN coupling products,
Ballard-Kyle P, Hsieh I, Zhu H.
europepmc   +2 more sources

Antilinear deformations of Coxeter groups, an application to Calogero models [PDF]

open access: yes, 2010
We construct complex root spaces remaining invariant under antilinear involutions related to all Coxeter groups. We provide two alternative constructions: One is based on deformations of factors of the Coxeter element and the other based on the ...
Andreas Fring   +13 more
core   +2 more sources

Coxeter–Petrie Complexes of Regular Maps

open access: yesEuropean Journal of Combinatorics, 2002
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Anderson, Kevin, Surowski, David B.
openaire   +2 more sources

EL-labelings and canonical spanning trees for subword complexes [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2013
We describe edge labelings of the increasing flip graph of a subword complex on a finite Coxeter group, and study applications thereof. On the one hand, we show that they provide canonical spanning trees of the facet-ridge graph of the subword complex ...
Vincent Pilaud, Christian Stump
doaj   +1 more source

Divergence of CAT(0) cube complexes and Coxeter groups [PDF]

open access: greenAlgebraic & Geometric Topology, 2018
We provide geometric conditions on a pair of hyperplanes of a CAT(0) cube complex that imply divergence bounds for the cube complex. As an application, we classify all right-angled Coxeter groups with quadratic divergence and show right-angled Coxeter groups cannot exhibit a divergence function between quadratic and cubic. This generalizes a theorem of
Ivan Levcovitz
openalex   +4 more sources

The absolute order on the hyperoctahedral group [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2009
The absolute order on the hyperoctahedral group $B_n$ is investigated. It is shown that every closed interval in this order is shellable, those closed intervals which are lattices are characterized and their zeta polynomials are computed. Moreover, using
Myrto Kallipoliti
doaj   +1 more source

Subword Complexes and Nil-Hecke Moves

open access: yesМоделирование и анализ информационных систем, 2013
For a finite Coxeter group W, a subword complex is a simplicial complex associated with a pair (Q, ρ), where Q is a word in the alphabet of simple reflections, ρ is a group element.
M. A. Gorsky
doaj   +3 more sources

Fan realizations of type $A$ subword complexes and multi-associahedra of rank 3 [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2015
We present complete simplicial fan realizations of any spherical subword complex of type $A_n$ for $n\leq 3$. This provides complete simplicial fan realizations of simplicial multi-associahedra $\Delta_{2k+4,k}$, whose facets are in correspondence with ...
Nantel Bergeron   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy