scholarly journals Classifying fractionalization: Symmetry classification of gappedZ2spin liquids in two dimensions

2013 ◽  
Vol 87 (10) ◽  
Author(s):  
Andrew M. Essin ◽  
Michael Hermele
Keyword(s):  
Two Dimensions ◽  
Symmetry Classification

Radical right parties and European economic integration: Evidence from the seventh European Parliament

2018 ◽  
Vol 19 (2) ◽  
pp. 321-343 ◽  
Author(s):  
Matteo Cavallaro ◽  
David Flacher ◽  
Massimo Angelo Zanetti
Keyword(s):  
European Parliament ◽  
Two Dimensions ◽  
Radical Right ◽  
Future Research ◽  
The European Union ◽  
Additive Trees ◽  
Radical Right Parties ◽  
Party Family ◽  
Clustering Criterion

This article explores the differences in radical right parties' voting behaviour on economic matters at the European Parliament. As the literature highlights the heterogeneity of these parties in relation to their economic programmes, we test whether divergences survive the elections and translate into dissimilar voting patterns. Using voting records from the seventh term of the European Parliament, we show that radical right parties do not act as a consolidated party family. We then analyse the differences between radical right parties by the means of different statistical methods (NOMINATE, Ward's clustering criterion, and additive trees) and find that these are described along two dimensions: the degree of opposition to the European Union and the classical left–right economic cleavage. We provide a classification of these parties compromising four groups: pro-welfare conditional, pro-market conditional, and rejecting. Our results indicate that radical right parties do not act as a party family at the European Parliament. This remains true regardless of the salience of the policy issues in their agendas. The article also derives streams for future research on the heterogeneity of radical right parties.

On the question of symmetry classification of ordered tetrahedrally coordinated structures

2008 ◽  
Vol 53 (3) ◽  
pp. 359-364 ◽  
Author(s):  
A. L. Talis ◽  
O. A. Belyaev ◽  
A. A. Reu ◽  
R. A. Talis
Keyword(s):  
Symmetry Classification

Symmetry analysis of states of ion pairs in crystals

1982 ◽  
Vol 384 (1786) ◽  
pp. 191-203
Keyword(s):  
Ion Pairs ◽  
Symmetry Reduction ◽  
Symmetry Analysis ◽  
Orbit Coupling ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Symmetry Classification

The symmetry classification of the states of a pair of interacting ions in a crystal is obtained by a formal symmetry reduction not dependent upon any assumptions about the details of the interaction. The theory is given in versions valid with or without spin-orbit coupling, and for pairs in magnetic or non-magnetic hosts. Some discrepancies with previous work are discussed.

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