#### Definition: Minimal MHD density equationEdit

*Minimal MHD density equation* is equation

#### Definition: Magnetic viskozityEdit

*Magnetic viskozity* is defined as

where is conductivity and permeability.

#### Definition: Minimal MHD magnetic equationEdit

*Minimal MHD magnetic equation* is equation

#### Definition: Minimal MHD speed equationEdit

*Minimal MHD speed equation* is equation

where are viskosity coefficients, is particle density.