Electronic Resource
[S.l.]
:
International Union of Crystallography (IUCr)
Acta crystallographica
51 (1995), S. 413-416
ISSN:
1600-5724
Source:
Crystallography Journals Online : IUCR Backfile Archive 1948-2001
Topics:
Chemistry and Pharmacology
,
Geosciences
,
Physics
Notes:
Invariants are those properties by which objects (in chemistry, physics, mathematics etc.) are commonly identified. They remove sensitivity to presentation and allow the intrinsic properties of the object to be seen. Invariants used for unit-cell comparison and for Bravais-lattice identification are reviewed, and proposals are made for possible directions of future research. The results of an exhaustive search for polynomial invariants of the components of the metric tensor through degree 12 are that polynomials in the volume squared are the only non-trivial such invariants.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1107/S0108767394009839
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