[Pw_forum] Different number of symmetry operations

[Feng Tian]

Dear QE users and developers,
                                         I run two calculations of two
crystal structures with D6h symmetry, but they gave different number of
symmetry operations. Two crystal structures are unit cell (1*1*1) structure
and a 4*4*4 supercell expanded by unit cell. The  unit cell and supercell
give 24 and 12 symmetry operations, respectively.  Does anyone know why?
Thanks a lot.



Feng
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