The phrase "a specified symmetry" is correct and usable in written English.
It can be used in contexts where you are referring to a particular type of symmetry that has been defined or identified.
Example: "In this mathematical model, we observe a specified symmetry that simplifies the equations significantly."
Alternatives: "a defined symmetry" or "a particular symmetry".
+ This class is used for the symmetries
This class is used for the symmetries input variable, to specify symmetries (which must preserve both the structure and the sources) for Meep to exploit.
Meep does not check whether your system really has this symmetry you should only specify symmetries that really preserve your structure and your sources.
As a special case we also provide a feedback control for the spacecraft symmetry axis to track a specified direction in the inertial space.
In equation (7), we specified compound symmetry for the covariance structure of the ξ ij 's.
Here, we see that the specific structure of Ω does not influence the moment equality - what all moment equalities of type (76), however, have in common is the fact that Ω has a symmetry property specified by (67).
Any number of symmetries can be exploited simultaneously, but there is no point in specifying redundant symmetries: the computational cell can be reduced by at most a factor of 4 in 2d and 8 in 3d.
More specifically, we address both the construction of a stochastic model and the definition of a methodology allowing the numerical simulation (and consequently, the inverse experimental identification) of random elasticity tensors whose mean distance (in a sense to be defined) to a given class of material symmetry is specified.
Bug fix: if you specified three or more symmetries, at most two symmetries were used (ignoring the rest).
The 4th order tensors containing the plastic anisotropy coefficients for orthotropic symmetry were specified.
(Respondents specified a range).
