Hexagonal projected symmetries
2015 ◽
Vol 71
(5)
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pp. 549-558
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Keyword(s):
In the study of pattern formation in symmetric physical systems, a three-dimensional structure in thin domains is often modelled as a two-dimensional one. This paper is concerned with functions in {\bb R}^{3} that are invariant under the action of a crystallographic group and the symmetries of their projections into a function defined on a plane. A list is obtained of the crystallographic groups for which the projected functions have a hexagonal lattice of periods. The proof is constructive and the result may be used in the study of observed patterns in thin domains, whose symmetries are not expected in two-dimensional models, like the black-eye pattern.
1990 ◽
Vol 48
(1)
◽
pp. 282-283
2019 ◽
1999 ◽
pp. 135-180
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1982 ◽
Vol 39
◽
pp. 183-231
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2009 ◽
Vol 65
(3)
◽
pp. m118-m120
2018 ◽
Vol 74
(5)
◽
pp. 599-603
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