scholarly journals Generalized symmetry superalgebras

2021 ◽  
Vol 62 (5) ◽  
pp. 052303
Author(s):  
Özgür Açık ◽  
Ümit Ertem
Keyword(s):  
Generalized Symmetry

Systematic generation of all nonequivalent closest-packed stacking sequences of length N using group theory

2001 ◽  
Vol 57 (6) ◽  
pp. 766-771 ◽  
Author(s):  
Richard M. Thompson ◽  
Robert T. Downs
Keyword(s):  
Group Theory ◽  
Symmetry Group ◽  
Binary Tree ◽  
Equivalence Classes ◽  
Generalized Symmetry

An algorithm has been developed that generates all of the nonequivalent closest-packed stacking sequences of length N. There are 2 N + 2(−1) N different labels for closest-packed stacking sequences of length N using the standard A, B, C notation. These labels are generated using an ordered binary tree. As different labels can describe identical structures, we have derived a generalized symmetry group, Q ≃ D N × S 3, to sort these into crystallographic equivalence classes. This problem is shown to be a constrained version of the classic three-colored necklace problem.

Generalized symmetry of graphs

2005 ◽  
Vol 23 ◽  
pp. 51-60 ◽  
Author(s):  
Fan Suohai
Keyword(s):  
Generalized Symmetry

scholarly journals The interactive museum and its non-human actants

1970 ◽  
pp. 45
Author(s):  
Jonathan Westin
Keyword(s):  
Learning Technologies ◽  
The Other ◽  
Educational Institutions ◽  
Equal Part ◽  
Knowledge Space ◽  
Explorative Study ◽  
Interactive Display ◽  
Generalized Symmetry ◽  
Interactive Displays ◽  
Specific Technology

This explorative study highlights the different strands of interactive learning technologies available to museums and educational institutions, and analyzes their function as non-human actants from a perspective of power and discipline. Through a generalized symmetry I describe a specific technology – the interactive display – as an actant exercising the same autonomy as the other actants. This raises the non-human actant to the same level as the human actants and emphasizes how it controls an equal part of the communication. In this way I try to map out how an exchange is manifested through a network of actants where the technologies conserve the inquiring actant’s knowledge space rather than broaden it. Despite being offered as a technology to make the visitor heard, the result is as curated as the classic exhibition. I conclude that by themselves, interactive displays do not challenge authority at museums but instead reinforce it. 

scholarly journals GsymPoint: An R Package to Estimate the Generalized Symmetry Point, an Optimal Cut-off Point for Binary Classification in Continuous Diagnostic Tests

The R Journal ◽  
2017 ◽  
Vol 9 (1) ◽  
pp. 262 ◽  
Author(s):  
Mónica López-Ratón ◽  
Elisa,M. Molanes-López ◽  
Emilio Letón ◽  
Carmen Cadarso-Suárez
Keyword(s):  
Diagnostic Tests ◽  
Binary Classification ◽  
R Package ◽  
Symmetry Point ◽  
Generalized Symmetry

Vibrational Total Energy Distributions in Terms of Symmetry Coordinates, Forces and Momenta

1980 ◽  
Vol 35 (4) ◽  
pp. 464-465
Author(s):  
Alain J. P. Alix ◽  
Erling Rytter
Keyword(s):  
Total Energy ◽  
Polyatomic Molecules ◽  
Vibrational Modes ◽  
Energy Distributions ◽  
Symmetry Coordinates ◽  
Generalized Symmetry ◽  
Normal Vibrational Modes

Abstract The fundamental definitions of the Total Energy and of the Vibrational Total Energy Distributions are presented in details in terms of either symmetry coordinates, or generalised symmetry forces, or generalized symmetry coordinates. This, give now a uniform tool for physicists and chemists in the field of characterisation of the normal vibrational modes of polyatomic molecules.

A Generalized Symmetry Transform With Selective Attention Capability for Specific Corner Angles

2004 ◽  
Vol 11 (2) ◽  
pp. 255-257 ◽  
Author(s):  
I. Choi ◽  
S.-I. Chien
Keyword(s):  
Selective Attention ◽  
Generalized Symmetry
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