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Symmetry, Volume 3, Issue 4

2011 December - 5 articles

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Articles (5)

  • Article
  • Open Access
5,745 Views
48 Pages

12 December 2011

In this paper we review recent results on the preliminary applications of the new-found extended global SO(3) × SO(3) × U(1) symmetry of the Hubbard model on a bipartite lattice. Our results refer to the particular case of the bipartite square lattic...

(This article belongs to the Special Issue Symmetries of Electronic Order)
  • Article
  • Open Access
8 Citations
7,460 Views
24 Pages

Polyominoes and Polyiamonds as Fundamental Domains of Isohedral Tilings with Rotational Symmetry

  • Hiroshi Fukuda,
  • Chiaki Kanomata,
  • Nobuaki Mutoh,
  • Gisaku Nakamura and
  • Doris Schattschneider

12 December 2011

We describe computer algorithms that produce the complete set of isohedral tilings by n-omino or n-iamond tiles in which the tiles are fundamental domains and the tilings have 3-, 4-, or 6-fold rotational symmetry. The symmetry groups of such tilings...

  • Article
  • Open Access
31 Citations
7,261 Views
13 Pages

29 November 2011

The paper puts the emphasis on surveying information-theoretic network measures for analyzing the structure of networks. In order to apply the quantities interdisciplinarily, we also discuss some of their properties such as their structural interpret...

(This article belongs to the Special Issue Symmetry Measures on Complex Networks)
  • Article
  • Open Access
9 Citations
5,417 Views
17 Pages

18 November 2011

The language of gene expression displays topological symmetry. An important step during gene expression is the binding of transcriptional proteins to DNA promoters adjacent to a gene. Some proteins bind to many promoters in a genome, defining a regul...

  • Article
  • Open Access
25 Citations
12,619 Views
51 Pages

d-Wave Superconductivity and s-Wave Charge Density Waves: Coexistence between Order Parameters of Different Origin and Symmetry

  • Toshikazu Ekino,
  • Alexander M. Gabovich,
  • Mai Suan Li,
  • Marek Pękała,
  • Henryk Szymczak and
  • Alexander I. Voitenko

20 October 2011

A review of the theory describing the coexistence between d-wave superconductivity and s-wave charge-density-waves (CDWs) is presented. The CDW gapping is identified with pseudogapping observed in high-Tc oxides. According to the cuprate specificity,...

(This article belongs to the Special Issue Symmetries of Electronic Order)
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Symmetry - ISSN 2073-8994