[EN CONSTRUCCION]
- a cubic simulation box whose sides are of length
![{\displaystyle \left.L\right.}](https://wikimedia.org/api/rest_v1/media/math/render/svg/42b28a0767ae24baa77b93edbbbadd848967baf7)
- a number of lattice positions,
given by
,
with
being a positive integer
- The
positions are those given by:
![{\displaystyle \left\{{\begin{array}{l}x_{a}=i_{a}\times (\delta l)\\y_{a}=j_{a}\times (\delta l)\\z_{a}=k_{a}\times (\delta l)\end{array}}\right\}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/db729ab99aa81ef5ffe255aa6e8f82f61f0d90b1)
where the indices of a given valid site are integer numbers that must fulfill the following criteria
![{\displaystyle 0\leq i_{a}<4m}](https://wikimedia.org/api/rest_v1/media/math/render/svg/9fe5d5bb2a51083c2cd9a2c599ed41bac2b77248)
![{\displaystyle 0\leq j_{a}<4m}](https://wikimedia.org/api/rest_v1/media/math/render/svg/49ed530920ef21c8fa8204a8bd8020330cc7fcbe)
,
- the sum of
can have only the values: 0, 3, 4, 7, 8, 10, ...
i.e,
; OR;
, with
is
any integer number
with