Representation theory of finite abelian groups applied to a linear diatomic crystal

After a brief review of matrix representations of finite abelian groups, projection operators are defined and used to compute symmetry coordinates for systems of coupled harmonic oscillators. The Lagrangian for such systems is discussed in the event that the displacements along the symmetry coordina...

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Main Authors: J. N. Boyd, P. N. Raychowdhury
Format: Article
Language:English
Published: Wiley 1980-01-01
Series:International Journal of Mathematics and Mathematical Sciences
Subjects:
Online Access:http://dx.doi.org/10.1155/S0161171280000427
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author J. N. Boyd
P. N. Raychowdhury
author_facet J. N. Boyd
P. N. Raychowdhury
author_sort J. N. Boyd
collection DOAJ
description After a brief review of matrix representations of finite abelian groups, projection operators are defined and used to compute symmetry coordinates for systems of coupled harmonic oscillators. The Lagrangian for such systems is discussed in the event that the displacements along the symmetry coordinates are complex. Lastly, the natural frequencies of a linear, diatomic crystal are determined through application of the Born cyclic condition and the determination of the symmetry coordinates.
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institution Kabale University
issn 0161-1712
1687-0425
language English
publishDate 1980-01-01
publisher Wiley
record_format Article
series International Journal of Mathematics and Mathematical Sciences
spelling doaj-art-6acd7b6849bd4be6bc27eec85e917a852025-02-03T06:13:16ZengWileyInternational Journal of Mathematics and Mathematical Sciences0161-17121687-04251980-01-013355957410.1155/S0161171280000427Representation theory of finite abelian groups applied to a linear diatomic crystalJ. N. Boyd0P. N. Raychowdhury1Department of Mathematical Sciences, Virginia Commonwealth University, Richmond 23284, Virginia, USADepartment of Mathematical Sciences, Virginia Commonwealth University, Richmond 23284, Virginia, USAAfter a brief review of matrix representations of finite abelian groups, projection operators are defined and used to compute symmetry coordinates for systems of coupled harmonic oscillators. The Lagrangian for such systems is discussed in the event that the displacements along the symmetry coordinates are complex. Lastly, the natural frequencies of a linear, diatomic crystal are determined through application of the Born cyclic condition and the determination of the symmetry coordinates.http://dx.doi.org/10.1155/S0161171280000427abelian groupsBorn cyclic conditiongroup representationsharmonic oscillatorsLagrangian mechanicsnatural frequenciesprojection operators.
spellingShingle J. N. Boyd
P. N. Raychowdhury
Representation theory of finite abelian groups applied to a linear diatomic crystal
International Journal of Mathematics and Mathematical Sciences
abelian groups
Born cyclic condition
group representations
harmonic oscillators
Lagrangian mechanics
natural frequencies
projection operators.
title Representation theory of finite abelian groups applied to a linear diatomic crystal
title_full Representation theory of finite abelian groups applied to a linear diatomic crystal
title_fullStr Representation theory of finite abelian groups applied to a linear diatomic crystal
title_full_unstemmed Representation theory of finite abelian groups applied to a linear diatomic crystal
title_short Representation theory of finite abelian groups applied to a linear diatomic crystal
title_sort representation theory of finite abelian groups applied to a linear diatomic crystal
topic abelian groups
Born cyclic condition
group representations
harmonic oscillators
Lagrangian mechanics
natural frequencies
projection operators.
url http://dx.doi.org/10.1155/S0161171280000427
work_keys_str_mv AT jnboyd representationtheoryoffiniteabeliangroupsappliedtoalineardiatomiccrystal
AT pnraychowdhury representationtheoryoffiniteabeliangroupsappliedtoalineardiatomiccrystal